A police officer wears a mask as he walks in front of the Oriental Pearl Tower, as the country is hit by an outbreak of a new coronavirus, in Lujiazui financial district in Pudong, Shanghai, China, February 5, 2020. REUTERS/Aly Song SEARCH "CHINA GHOST" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY

Skyscrapers Oriental Pearl Tower and Jin Mao Tower (L) are seen from the Shanghai World Financial Center on a hazy day in the financial district of Pudong in Shanghai, China, January 16, 2018. REUTERS/Aly Song TPX IMAGES OF THE DAY

Skyscrapers Oriental Pearl Tower and Jin Mao Tower (L) are seen from the Shanghai World Financial Center on a hazy day in the financial district of Pudong in Shanghai, China, January 16, 2018. REUTERS/Aly Song

Skyscraper Oriental Pearl Tower is seen from the Shanghai World Financial Center on a hazy day in the financial district of Pudong in Shanghai, China, January 16, 2018. REUTERS/Aly Song

The Oriental Pearl TV Tower is seen in smog during a polluted day in Shanghai, China November 22, 2017. REUTERS/Aly Song

The Oriental Pearl TV Tower is seen amid heavy smog at Pudong financial district in Shanghai, China November 18, 2016. REUTERS/Aly Song

The Oriental Pearl Tower is seen at the financial district of Pudong in Shanghai, China October 9, 2016. REUTERS/Aly Song

Skyscrapers Oriental Pearl Tower and Jin Mao Tower (L) are seen from the Shanghai World Financial Center during rain at the financial district of Pudong in Shanghai, China, January 28, 2016. REUTERS/Aly Song/File Photo

Skyscrapers Oriental Pearl Tower and Jin Mao Tower (L) are seen from the Shanghai World Financial Center during rain at the financial district of Pudong in Shanghai, China, January 28, 2016. REUTERS/Aly Song

The Oriental Pearl Tower skyscraper is seen during rain at the financial district of Pudong in Shanghai, China, January 28, 2016. REUTERS/Aly Song

The Oriental Pearl Tower skyscraper is seen from the Shanghai World Financial Center during rain at the financial district of Pudong in Shanghai, China, January 28, 2016. REUTERS/Aly Song

Skyscrapers Oriental Pearl Tower and Jin Mao Tower (L) are seen from the Shanghai World Financial Center, in rain at the financial district of Pudong in Shanghai, China, January 28, 2016. REUTERS/Aly Song

A view of Shanghai's skyscrapers, Oriental Pearl Tower (L), Shanghai Tower (2nd L), Jin Mao Tower (2nd R) and the Shanghai World Financial Center (R) are seen amid heavy smog in Shanghai, China, January 26, 2016. REUTERS/Aly Song

Shanghai's landmark building Oriental Pearl TV Tower as seen from the Shanghai World Financial Center amid heavy smog in Shanghai, China, December 25, 2015. REUTERS/Aly Song

A security personnel guards the bund as the Shanghai's landmark building Oriental Pearl TV Tower is seen amid heavy smog, in Shanghai, China, December 11, 2015. REUTERS/Aly Song TPX IMAGES OF THE DAY

A combination photo shows the blue, white and red colours of the French national flag lit up in buildings and towers around the world in tribute to the victims of the November 13, 2015 Paris attacks. The photographs (from top to bottom, L to R ) : London’s National Gallery, London Eye ferris wheel, Toronto's CN Tower, Shanghai’s Oriental Pearl TV Tower, Berlin’s Brandenburg gate, Taiwan's Taipei 101, Sydney's Opera House, Mexico’s Angel de la Independencia monument, San Francisco City Hall. REUTERS/Staff TPX IMAGES OF THE DAY

Shanghai's landmark building Oriental Pearl TV Tower is lit up in blue, white and red, the colors of the French flag, following the Paris attacks, in Shanghai, China, November 14, 2015. REUTERS/Aly Song

Shanghai's landmark building Oriental Pearl TV Tower is lit up in blue, white and red, the colors of the French flag, following the Paris attacks, in Shanghai, China, November 14, 2015. REUTERS/Aly Song

Shanghai's landmark building Oriental Pearl TV Tower is lit up in blue, white and red, the colors of the French flag, following the Paris attacks, in Shanghai, China, November 14, 2015. REUTERS/Aly Song

Shanghai's landmark building The Oriental Pearl TV Tower is lit up in blue, white and red, the colors of the French flag, following the Paris attacks, in Shanghai, China, November 14, 2015. REUTERS/Aly Song

Security cameras are seen on a building at the Bund in front of the financial district of Pudong in Shanghai March 6, 2015. China's 2015 economic growth will meet the official target of around 7 percent, even though the economy faces headwinds, a senior government official said on Thursday. REUTERS/Aly Song (CHINA - Tags: POLITICS BUSINESS SOCIETY)

A woman walks at the Bund in front of the financial district of Pudong in Shanghai March 5, 2015. China aims to grow its economy by around 7 percent in 2015 and to keep consumer inflation at around 3 percent, Premier Li Keqiang said in remarks prepared for delivery at today's opening of the annual meeting of parliament, the National People's Congress. REUTERS/Aly Song (CHINA - Tags: POLITICS BUSINESS TPX IMAGES OF THE DAY)

The Oriental Pearl TV Tower is seen in the background as people walk along the bund by the Huangpu River, during the Chinese New Year Holidays, in Shanghai February 20, 2015. According to the Chinese lunar calendar, the Chinese New Year, which welcomes the year of the Sheep (also known as the Year of the Goat or Ram). REUTERS/Carlos Barria (CHINA - Tags: SOCIETY BUSINESS TELECOMS ENVIRONMENT CITYSCAPE)

The Oriental Pearl Tower (L) is seen through the haze in downtown Shanghai February 20, 2015. REUTERS/Carlos Barria (CHINA - Tags: CITYSCAPE ENVIRONMENT BUSINESS TELECOMS)

The Oriental Pearl TV Tower is seen in the background as people walk along the bund by the Huangpu River, during the Chinese New Year Holidays, in Shanghai February 20, 2015. According to the Chinese lunar calendar, the Chinese New Year, which welcomes the year of the Sheep (also known as the Year of the Goat or Ram). REUTERS/Carlos Barria (CHINA - Tags: SOCIETY CITYSCAPE ENVIRONMENT BUSINESS TELECOMS)

People walk next to a temporary dividing wall on the bund by the Huangpu River in Shanghai February 20, 2015. The walls are part of a plan by local authorities to control the pedestrian flow after a deadly stampede, on New Year's Eve at the bund, claimed 36 lives during the New Year celebrations. REUTERS/Carlos Barria (CHINA - Tags: SOCIETY DISASTER CITYSCAPE TPX IMAGES OF THE DAY)

Woman wear face masks on the Bund in front of the Oriental Pearl TV Tower during a hazy day in downtown Shanghai January 26, 2015. China's pollution crisis has inspired an environmental regulator in a smog-blanketed northern province to write a novel whose extracts have gone viral online, spurring plans for two more books. "Smog Is Coming", published last June, touches on fraud and bureaucracy and their impact on air pollution, with the official China Daily reporting that online excerpts have received tens of millions of pageviews. REUTERS/Aly Song (CHINA - Tags: ENVIRONMENT SOCIETY SCIENCE TECHNOLOGY)

"The Ninth Wave," an art piece by Chinese artist Cai Guoqiang, docks along the Huangpu River as part of the 2014 Power Station Art exhibition in Shanghai July 17, 2014. The artwork features a fishing boat from the artist's hometown of Fujian depicting 99 fake stuffed animals that have been sickened by the environment. REUTERS/Carlos Barria (CHINA - Tags: SOCIETY TPX IMAGES OF THE DAY)

The Oriental Pearl TV Tower is seen between trees at Pudong financial district in Shanghai April 2, 2014. China's Vice Premier Zhang Gaoli called for faster construction of certain important projects on Tuesday, in remarks that may feed speculation that China will increase state spending in coming months to bolster its stuttering economy. China's economy has had a surprisingly soft start to the year, rattling investors who had expected a stable performance and who now fear China may drag on global growth. Two surveys on Tuesday showed China's manufacturing sector remained weak in March. REUTERS/Carlos Barria (CHINA - Tags: BUSINESS ENVIRONMENT MEDIA CITYSCAPE)

The Oriental Pearl TV Tower reflected on the facade of another building at Pudong financial district in Shanghai April 2, 2014. China's Vice Premier Zhang Gaoli called for faster construction of certain important projects on Tuesday, in remarks that may feed speculation that China will increase state spending in coming months to bolster its stuttering economy. China's economy has had a surprisingly soft start to the year, rattling investors who had expected a stable performance and who now fear China may drag on global growth. Two surveys on Tuesday showed China's manufacturing sector remained weak in March. REUTERS/Carlos Barria (CHINA - Tags: BUSINESS CITYSCAPE MEDIA TPX IMAGES OF THE DAY)

A man looks at the Oriental Pearl TV Tower on a hazy day at Pudong financial district in Shanghai March 18, 2014. China pledged on Sunday that it will make sure that 60 percent of its cities meet national pollution standards by 2020, with pressure growing to make cities liveable as hundreds of millions of migrants are expected to relocate from the countryside. REUTERS/Carlos Barria (CHINA - Tags: ENVIRONMENT BUSINESS)

The Oriental Pearl TV Tower is seen during a hazy day at Pudong financial district in Shanghai March 18, 2014. China pledged on Sunday that it will make sure that 60 percent of its cities meet national pollution standards by 2020, with pressure growing to make cities liveable as hundreds of millions of migrants are expected to relocate from the countryside. REUTERS/Carlos Barria (CHINA - Tags: ENVIRONMENT BUSINESS)

The Oriental Pearl TV Tower is seen during a hazy day at Pudong financial district in Shanghai March 18, 2014. China pledged on Sunday that it will make sure that 60 percent of its cities meet national pollution standards by 2020, with pressure growing to make cities liveable as hundreds of millions of migrants are expected to relocate from the countryside. REUTERS/Carlos Barria (CHINA - Tags: ENVIRONMENT BUSINESS)

The Oriental Pearl TV Tower is seen during a hazy day at Pudong financial district in Shanghai March 18, 2014. China pledged on Sunday that it will make sure that 60 percent of its cities meet national pollution standards by 2020, with pressure growing to make cities liveable as hundreds of millions of migrants are expected to relocate from the countryside. REUTERS/Carlos Barria (CHINA - Tags: ENVIRONMENT BUSINESS TPX IMAGES OF THE DAY)

The Oriental Pearl Tower is seen as people cross the Huangpu River on a ferry in downtown Shanghai, March 14, 2014. China's real estate investment slowed in the first two months of 2014 while sales dropped from a year earlier, official data showed on Thursday, the latest signs of cooling in the property market as the broader economy as slows. REUTERS/Carlos Barria (CHINA - Tags: BUSINESS REAL ESTATE CITYSCAPE SOCIETY MEDIA)

A man walks at the financial district of Pudong in Shanghai March 11, 2014. Beijing announced sweeping reforms late last year as it tries to shift the economy away from a reliance on the investment and exports that have fuelled double-digit expansion for three decades in favour of consumption and services, which it hopes will generate more sustainable long-term growth. REUTERS/Carlos Barria (CHINA - Tags: BUSINESS SOCIETY)

A worker descends down a building after cleaning the exterior near the Oriental Pearl TV Tower during a hazy day at Lujiazui financial district of Pudong in Shanghai, March 10, 2014. China sent its strongest signal yet that its days of chasing breakneck economic growth are over, promising to wage a "war" on pollution and reduce the pace of investment to the slowest in a decade as it pursues more sustainable expansion. REUTERS/Aly Song (CHINA - Tags: BUSINESS ENVIRONMENT)

Workers clean the exterior of the Oriental Pearl TV Tower during a hazy day at Lujiazui financial district of Pudong in Shanghai, March 10, 2014. China sent its strongest signal yet that its days of chasing breakneck economic growth are over, promising to wage a "war" on pollution and reduce the pace of investment to the slowest in a decade as it pursues more sustainable expansion. REUTERS/Aly Song (CHINA - Tags: BUSINESS ENVIRONMENT)

Painters work on a bridge in front of Shanghai's financial district of Pudong during a hazy day in downtown Shanghai February 24, 2014. REUTERS/Aly Song (CHINA - Tags: ENVIRONMENT)

Visitors take pictures and videos during a light show as part of a New Year countdown celebration as part of a New Year countdown celebration on the Bund in Shanghai January 1, 2014. REUTERS/Aly Song (CHINA - Tags: SOCIETY TPX IMAGES OF THE DAY)

Visitors take pictures and videos as fireworks explode over Oriental Pearl Tower as part of a New Year countdown celebration on the Bund in Shanghai January 1, 2014. REUTERS/Aly Song (CHINA - Tags: SOCIETY)

A man stands on the Bund in front of the financial district of Pudong during a hazy day in downtown Shanghai December 6, 2013. China's stability-obsessed leadership has become increasingly concerned by the abysmal air quality in cities, as it plays into popular resentment over political privilege and rising inequality in the world's second-largest economy. REUTERS/Aly Song (CHINA - Tags: POLITICS ENVIRONMENT SOCIETY)

Participants run on the Bund near Huangpu River as they compete in the Shanghai International Marathon December 1, 2013. Seen in the background is the Oriental Pearl TV Tower at the financial district of Pudong. REUTERS/Carlos Barria (CHINA - Tags: SPORT ATHLETICS)

Participants run at the Bund near Huangpu River as they compete in the Shanghai International Marathon December 1, 2013. Seen in the background is the Oriental Pearl TV Tower at the financial district of Pudong. REUTERS/Carlos Barria (CHINA - Tags: SPORT ATHLETICS TPX IMAGES OF THE DAY)

Participants run on the Bund near Huangpu River as they compete in the Shanghai International Marathon December 1, 2013. Seen in the background is the Oriental Pearl TV Tower at the financial district of Pudong. REUTERS/Carlos Barria (CHINA - Tags: SPORT ATHLETICS)

A man looks at the Pudong financial district of Shanghai November 20, 2013. With a shift in tone and language, China's central bank governor has dangled the prospect of speeding up currency reform and giving markets more room to set the yuan's exchange rate as he underlines broader plans for sweeping economic change. The central bank under Zhou Xiaochuan has consistently flagged its intention to liberalise financial markets and allow the yuan to trade more freely, even before the Communist Party's top brass unveiled late last week the boldest set of economic and social reforms in nearly three decades. REUTERS/Carlos Barria (CHINA - Tags: BUSINESS CITYSCAPE TPX IMAGES OF THE DAY)

Construction workers work on the scaffolding of a new building in front of the Oriental Pearl TV Tower in an area where old residential buildings are being demolished to make room for new skyscrapers in Shanghai September 9, 2013. REUTERS//Aly Song (CHINA - Tags: BUSINESS CONSTRUCTION)

A worker cleans the exterior of the Oriental Pearl TV Tower in Shanghai September 2, 2013. China's economy grew 7.7 percent in 2012 from the previous year, the National Bureau of Statistics said on Monday, revising its earlier estimate of 7.8 percent published in January. REUTERS/Aly Song (CHINA - Tags: BUSINESS SOCIETY)

Workers clean the exterior of the Oriental Pearl TV Tower in Shanghai September 2, 2013. China's economy grew 7.7 percent in 2012 from the previous year, the National Bureau of Statistics said on Monday, revising its earlier estimate of 7.8 percent published in January. REUTERS/Aly Song (CHINA - Tags: BUSINESS SOCIETY TPX IMAGES OF THE DAY)

Women use umbrellas to protect themselves from the sun as they stand on the bund in front of the financial district in Shanghai August 6, 2013. The temperature in Shanghai rose to 41.1 degrees Celsius (106 degrees Fahrenheit) on Tuesday, according local media. REUTERS/Carlos Barria (CHINA - Tags: ENVIRONMENT)

A woman uses an umbrella to protect herself from the sun as she crosses a busy street in downtown Shanghai August 6, 2013. The temperature in Shanghai rose to 41.1 degrees Celsius (106 degrees Fahrenheit) on Tuesday, according to local media. REUTERS/Carlos Barria (CHINA - Tags: ENVIRONMENT)

A general view of Shanghai's financial district of Pudong is seen from the top of the Shanghai Tower, which is undergoing construction, August 2, 2013. The 632 metres (2,073 ft) high Shanghai Tower, which is scheduled to finish construction by the end of 2014, will be the tallest skyscraper in China and the second tallest in the world. REUTERS/Carlos Barria (CHINA - Tags: BUSINESS CONSTRUCTION CITYSCAPE)

A man walks next to a subway entrance as the Oriental Pearl Tower is seen reflected on a window at the financial district of Pudong, in Shanghai July 8, 2013. China's resolve to revamp its economy for the long-term good will be tested this month when a slew of data show growth is grinding towards a 23-year low, with no recovery in sight. REUTERS/Carlos Barria (CHINA - Tags: BUSINESS)

A double-decker tourism bus is seen on fire in front of the Oriental Pearl Tower in the Pudong financial district of Shanghai July 8, 2013. Passengers were seen walking away from the bus which burst into flames during rush hour at one of the busiest intersections in the city. REUTERS/Carlos Barria (CHINA - Tags: DISASTER TRANSPORT)

Firefighters spray water on a double-decker tourism bus which caught fire in front of the Oriental Pearl Tower in the Pudong financial district of Shanghai July 8, 2013. Passengers were seen walking away from the bus which burst into flames during rush hour at one of the busiest intersections in the city. REUTERS/Carlos Barria (CHINA - Tags: DISASTER TRANSPORT)

Firefighters spray water on a double-decker tourism bus which caught on fire in front of the Oriental Pearl Tower in the Pudong financial district of Shanghai July 8, 2013. Passengers were seen walking away from the bus which burst into flames during rush hour at one of the busiest intersections in the city. REUTERS/Carlos Barria (CHINA - Tags: DISASTER TRANSPORT)

People walk away as a double-decker tourism bus which caught fire in front of the Oriental Pearl Tower in the Pudong financial district of Shanghai July 8, 2013. Passengers were seen walking away from the bus which burst into flames during rush hour at one of the busiest intersections in the city. REUTERS/Carlos Barria (CHINA - Tags: DISASTER TRANSPORT)

Firefighters spray water on a double-decker tourism bus which caught on fire in front of the Oriental Pearl Tower in the Pudong financial district of Shanghai July 8, 2013. Passengers were seen walking away from the bus which burst into flames during rush hour at one of the busiest intersections in the city. REUTERS/Carlos Barria (CHINA - Tags: DISASTER TRANSPORT TPX IMAGES OF THE DAY)

A double-decker tourism bus is seen on fire in front of the Oriental Pearl Tower in the Pudong financial district of Shanghai July 8, 2013. Passengers were seen walking away from the bus which burst into flames during rush hour at one of the busiest intersections in the city. REUTERS/Carlos Barria (CHINA - Tags: DISASTER TPX IMAGES OF THE DAY)

People walk near the Oriental Pearl Tower (L) at the Pudong financial district of Shanghai July 4, 2013. China's economy is expected to grow 7.6 percent in the second half of 2013, but risks of bad local government loans, slowing growth of central government revenue, diminished export competitiveness and industrial capacity are growing, the official China Securities Journal reported on Thursday. REUTERS/Carlos Barria (CHINA - Tags: BUSINESS)