Temples and other buildings on the bank of Sarayu river are seen illuminated ahead of the foundation-laying ceremony for a Hindu temple in Ayodhya, India, August 4, 2019. REUTERS/Pawan Kumar TPX IMAGES OF THE DAY

A man walks into heavy wind and rain along the waterfront of the Hudson River in front of the New York City skyline during Tropical Storm Isaias in Weehawken, New Jersey, U.S., August 4, 2020. REUTERS/Mike Segar TPX IMAGES OF THE DAY

An armed police officer stands guard on the bank of Sarayu river ahead of the foundation-laying ceremony for a Hindu temple in Ayodhya, India, August 4, 2019. REUTERS/Pawan Kumar

A boy looks down at a flooded Han River park from an observatory platform in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

A woman eats an ice cream with a flooded Han River park seen in the background at an observatory platform in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

Visitors use their mobile phones as a flooded Han River park is seen in the background at an observatory platform in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

A man washes off mud from his hands at a flooded Han River park in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

A boy looks down a flooded Han River park at an observatory platform in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

A man crosses a mud-covered trail carrying his wife on his back at a flooded Han River park in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji TPX IMAGES OF THE DAY

Partially submerged benches are seen by a flooded at a Han River Park in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

A couple looks at a flooded Han River park in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

Workers look at a flooded Han River park in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

A man fishes along a flooded Han River park in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

A vehicle tries to cross a submerged bridge by the flooded Han River in Seoul, South Korea, August 4, 2020. REUTERS/Kim Hong-Ji

An Uber boat is pictured following the launch of the new boat service on the River Thames in London, Britain, August 3, 2020. REUTERS/John Sibley

An Uber boat operates following the launch of the new boat service on the River Thames in London, Britain, August 3, 2020. REUTERS/John Sibley

An Uber boat operates following the launch of the new boat service on the River Thames in London, Britain, August 3, 2020. REUTERS/John Sibley

An Uber boat operates following the launch of the new boat service on the River Thames in London, Britain, August 3, 2020. REUTERS/John Sibley

An Uber boat passes under Westminster bridge with the Houses of Parliament in the background, as it operates following the launch of the new boat service on the River Thames in London, Britain, August 3, 2020. REUTERS/John Sibley

An Uber boat operates following the launch of the new boat service on the River Thames in London, Britain, August 3, 2020. REUTERS/John Sibley

An Uber boat operates following the launch of the new boat service on the River Thames in London, Britain, August 3, 2020. REUTERS/John Sibley

An Uber boat operates following the launch of the new boat service on the River Thames in London, Britain, August 3, 2020. REUTERS/John Sibley

A devotee wearing a face mask offers prayers along the bank of Bagmati River flowing through the premises of Pashupatinath Temple amid the outbreak of the coronavirus disease (COVID-19) in Kathmandu, Nepal, August 3, 2020. Hindus take holy baths and change their sacred thread, also known as Janai, for protection and purification, during the festival. REUTERS/Navesh Chitrakar

People sit socially distanced in the sunshine on a tourist cruise boat on the River Thames in London, Britain, July 31, 2020. REUTERS/John Sibley

People sit on an inflatable tourist tour boat on the River Thames, in London, Britain, July 31, 2020. REUTERS/John Sibley

People sit in the sunshine on a tourist cruise boat on the River Thames in London, Britain, July 31, 2020. REUTERS/John Sibley

Punts are seen on the river, in Cambridge, Britain July 31, 2020. REUTERS/Andy Couldridge

Punts are seen on the river, in Cambridge, Britain July 31, 2020. REUTERS/Andy Couldridge

People are seen on a punt on the river, in Cambridge, Britain July 31, 2020. REUTERS/Andy Couldridge

People are seen on a punt on the river, in Cambridge, Britain July 31, 2020. REUTERS/Andy Couldridge

People are seen on a punt on the river, in Cambridge, Britain July 31, 2020. REUTERS/Andy Couldridge

People are seen on a punt on the river, in Cambridge, Britain July 31, 2020. REUTERS/Andy Couldridge

A protective screen is seen on a punt on the river at Scudamore's punt hire, in Cambridge, Britain July 31, 2020. REUTERS/Andy Couldridge

People sit at the embankment of the river Isar downtown Munich, as a lot of Germans spend holidays in their country due to coronavirus disease (COVID-19) outbreak, in Germany, July 28, 2020. REUTERS/Michael Dalder

People sit at the embankment of the river Isar downtown Munich, as a lot of Germans spend holidays in their country due to coronavirus disease (COVID-19) outbreak, in Germany, July 28, 2020. REUTERS/Michael Dalder

People sit at the embankment of the river Isar downtown Munich, as a lot of Germans spend holidays in their country due to coronavirus disease (COVID-19) outbreak, in Germany, July 28, 2020. REUTERS/Michael Dalder

An Iraqi boy dives into the Tigris river to cool down, as the temperature soars in Mosul, Iraq July 27, 2020. REUTERS/Khalid al-Mousily

An Iraqi boy dives into the Tigris river to cool down, as the temperature soars in Mosul, Iraq July 27, 2020. REUTERS/Khalid al-Mousily

An Iraqi boy dives into the Tigris river to cool down, as the temperature soars in Mosul, Iraq July 27, 2020. REUTERS/Khalid al-Mousily

An Iraqi boy dives into the Tigris river to cool down, as the temperature soars in Mosul, Iraq July 27, 2020. REUTERS/ Khalid al-Mousily

River bus passes in the Nile, during the coronavirus disease (COVID-19) pandemic, in Cairo, Egypt July 27, 2020. REUTERS/Mohamed Abd El Ghany

A general view of the Santa Catarina river is seen during the Storm Hanna in Monterrey, Mexico July 26, 2020. REUTERS/Daniel Becerril

A general view of the Santa Catarina river is seen during the Storm Hanna in Monterrey, Mexico July 26, 2020. REUTERS/Daniel Becerril

A man waves to the people, as he is stranded amid stormwater drainage flow along the Lyari River, after the monsoon rain, as the outbreak of the coronavirus disease (COVID-19) continues, in Karachi, Pakistan July 26, 2020. REUTERS/Akhtar Soomro

The Russian Navy's missile corvette Dmitrovgrad sails past the Dvortsoviy Bridge over the Neva River during the Navy Day parade in Saint Petersburg, Russia July 26, 2020. Dmitri Lovetsky/Pool via REUTERS

The Russian Navy's missile corvette Dmitrovgrad sails past the Dvortsoviy Bridge over the Neva River during the Navy Day parade in Saint Petersburg, Russia July 26, 2020. Dmitri Lovetsky/Pool via REUTERS

Russian warships sail past the Dvortsoviy Bridge over the Neva River during the Navy Day parade in Saint Petersburg, Russia July 26, 2020. Dmitri Lovetsky/Pool via REUTERS

Russian warships sail along the Neva River during the Navy Day parade in Saint Petersburg, Russia July 26, 2020. Dmitri Lovetsky/Pool via REUTERS

A view of the Alabama river is seen from the Edmund Pettus Bridge in Selma, Alabama, U.S., July 25, 2020. REUTERS/Chris Aluka Berry

A boy plays in floodwater beside the Padma river as he sits on a banana branch after the flood situation worsen in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

People walk in a flooded street beside Padma river as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

A woman walks in a flooded street beside Padma river as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

People walk on flooded land beside the Padma river as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

People walk on flooded land beside the Padma river as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

People walk on flooded land beside the Padma river as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

Houses located beside the Padma river are seen flooded as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

People walk in a flooded street beside the Padma river as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

People walk in a flooded street beside the Padma river as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

Houses located beside the Padma river are seen flooded as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain

People walk in a flooded street beside the Padma river as the flood situation worsens in Munshiganj district, on the outskirts of Dhaka, Bangladesh, July 25, 2020. REUTERS/Mohammad Ponir Hossain