Birds fly over an electric power windmill in the village of Ushakovo, Kaliningrad region, Russia May 25, 2020. REUTERS/Vitaly Nevar

An electric power windmill is seen at sunset near the village of Ushakovo, Kaliningrad region, Russia May 25, 2020. REUTERS/Vitaly Nevar

An electric power windmill is seen at sunset near the village of Ushakovo, Kaliningrad region, Russia May 25, 2020. REUTERS/Vitaly Nevar

A combination picture shows a traffic police officer in a protective face mask standing guard on a street next to the closed Moscow Cathedral Mosque during Eid al-Fitr, the Muslim festival marking the end the holy fasting month of Ramadan, amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 24, 2020, and thousands of believers taking part in morning prayers to celebrate the first day of Eid-al-Fitr at the same location August 8, 2013. REUTERS/Maxim Shemetov, Sergei Karpukhin

A traffic police officer wearing a protective face mask stands guard on a street next to the closed Moscow Cathedral Mosque during Eid al-Fitr, the Muslim festival marking the end the holy fasting month of Ramadan, amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 24, 2020. REUTERS/Maxim Shemetov

A combination picture shows a man walking past the closed Moscow Cathedral Mosque during Eid al-Fitr, the Muslim festival marking the end the holy fasting month of Ramadan, amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 24, 2020, and believers attending the morning prayers of Eid al-Fitr festival at the same location July 17, 2015. REUTERS/Maxim Shemetov, Maxim Zmeyev

A man wearing a protective face mask walks past the closed Moscow Cathedral Mosque during Eid al-Fitr, the Muslim festival marking the end the holy fasting month of Ramadan, amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 24, 2020. REUTERS/Maxim Shemetov

A law enforcement officer stands guard outside the closed Moscow Cathedral Mosque during Eid al-Fitr, the Muslim festival marking the end the holy fasting month of Ramadan, amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 24, 2020. REUTERS/Maxim Shemetov

Law enforcement officers patrol a street in front of the closed Moscow Cathedral Mosque during Eid al-Fitr, the Muslim festival marking the end the holy fasting month of Ramadan, amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 24, 2020. REUTERS/Maxim Shemetov

Traditional dishes are seen on a table as Muslim clerics share a meal after the prayers during Eid al-Fitr, a Muslim festival marking the end the holy fasting month of Ramadan, at a mosque, amid the coronavirus disease (COVID-19) outbreak in Omsk, Russia May 24, 2020. REUTERS/Alexey Malgavko


Muslim clerics wearing protective face masks take part in prayers during Eid al-Fitr, a Muslim festival marking the end the holy fasting month of Ramadan, at a mosque, amid the coronavirus disease (COVID-19) outbreak in Omsk, Russia May 24, 2020. REUTERS/Alexey Malgavko

Muslim clerics take part in prayers during Eid al-Fitr, a Muslim festival marking the end the holy fasting month of Ramadan, at a mosque, amid the coronavirus disease (COVID-19) outbreak in Omsk, Russia May 24, 2020. REUTERS/Alexey Malgavko

Muslim clerics wearing protective face masks take part in prayers during Eid al-Fitr, a Muslim festival marking the end the holy fasting month of Ramadan, at a mosque, amid the coronavirus disease (COVID-19) outbreak in Omsk, Russia May 24, 2020. REUTERS/Alexey Malgavko

Muslim clerics wearing protective face masks take part in prayers during Eid al-Fitr, a Muslim festival marking the end the holy fasting month of Ramadan, at a mosque, amid the coronavirus disease (COVID-19) outbreak in Omsk, Russia May 24, 2020. REUTERS/Alexey Malgavko

Law enforcement officers are seen near a bank branch after an unidentified man reportedly took hostages, in Moscow, Russia May 23, 2020. REUTERS/Tatyana Makeyeva

Law enforcement officers are seen near a bank branch after an unidentified man reportedly took hostages, in Moscow, Russia May 23, 2020. REUTERS/Tatyana Makeyeva

A preserved grasshopper with a mask, a miniature artwork by micro-artist Anatoly Konenko, following the outbreak of the coronavirus disease (COVID-19), is seen in an artist's workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko TPX IMAGES OF THE DAY

Micro-artist Anatoly Konenko looks at a preserved grasshopper with a mask, his miniature artwork following the outbreak of the coronavirus disease (COVID-19), in a workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

A preserved grasshopper with a mask, a miniature artwork by micro-artist Anatoly Konenko, following the outbreak of the coronavirus disease (COVID-19), is seen in an artist's workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

Micro-artist Anatoly Konenko works with a preserved grasshopper with a mask, his miniature artwork following the outbreak of the coronavirus disease (COVID-19), in a workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

Micro-artist Anatoly Konenko works with a preserved grasshopper with a mask, his miniature artwork following the outbreak of the coronavirus disease (COVID-19), in a workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

A preserved bee with a mask, a miniature artwork by micro-artist Anatoly Konenko, following the outbreak of the coronavirus disease (COVID-19), is seen in an artist's workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

Micro-artist Anatoly Konenko looks at a preserved grasshopper with a mask, his miniature artwork following the outbreak of the coronavirus disease (COVID-19), in a workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

Micro-artist Anatoly Konenko, creator of miniature artworks with preserved insects following the outbreak of the coronavirus disease (COVID-19), is seen in his workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

Micro-artist Anatoly Konenko, creator of miniature artworks with preserved insects following the outbreak of the coronavirus disease (COVID-19), is seen in his workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

A preserved dragonfly with a mask, a miniature artwork by micro-artist Anatoly Konenko, following the outbreak of the coronavirus disease (COVID-19), is seen in an artist's workshop in Omsk, Russia May 21, 2020. Picture taken May 21, 2020. REUTERS/Alexey Malgavko

Closed Il Patio and Kroshka Kartoshka restaurants are seen at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

A general view on the terminal of Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

Aircrafts of Pobeda airlines are seen at the Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

A woman in a face mask looks on at the Vnukovo International Airport is seen amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

People walk past a sculpture of a cow with a protective mask next to a closed restaurant at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

Closed restaurant and a sculpture of a cow with a protective mask are seen at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

A sculpture of a cow with a protective mask is seen next to a closed restaurant at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

People walk past deserted check-in stands at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

Turned off information boards and an advertisement screen are seen at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

Deserted check-in stands are seen at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

Deserted check-in stands are seen at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

The logo of Vnukovo International Airport is seen amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

Boards of Rossiya airlines are seen at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

Deserted check-in stands and an advertisement of Azur Air airlines are seen at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

A man sits by the window at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

A man passes by at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

A man passes by at Vnukovo International Airport amid the outbreak of the coronavirus disease (COVID-19) in Moscow, Russia May 22, 2020. REUTERS/Maxim Shemetov

A woman, wearing protective face mask amid the outbreak of the coronavirus disease (COVID-19), poses for her friend next to a horse sculpture with a mask, in Moscow, Russia May 21, 2020. REUTERS/Tatyana Makeyeva

A couple, wearing protective face masks amid the outbreak of the coronavirus disease (COVID-19), walks past a horse sculpture with a mask, in Moscow, Russia May 21, 2020. REUTERS/Tatyana Makeyeva

Brock Bierman, Assistant Administrator of the U.S. Agency for International Development (USAID), stands next to a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

U.S. ambassador to Russia John Sullivan (R) and Brock Bierman, Assistant Administrator of the U.S. Agency for International Development (USAID), stand next to a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

U.S. ambassador to Russia John Sullivan (R) and Brock Bierman, Assistant Administrator of the U.S. Agency for International Development (USAID), stand next to a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

A shipment containing medical aid from the United States, including 50 ventilators, is carried after being unloaded from a U.S. Air Force C-17 Globemaster transport plane at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

A shipment containing medical aid from the United States, including 50 ventilators, is carried after being unloaded from a U.S. Air Force C-17 Globemaster transport plane at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

Workers unload a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

A shipment containing medical aid from the United States, including 50 ventilators, is carried after being unloaded from a U.S. Air Force C-17 Globemaster transport plane at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

Workers and U.S. soldiers unload a?U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

A shipment containing medical aid from the United States, including 50 ventilators, is carried after being unloaded from a U.S. Air Force C-17 Globemaster transport plane at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

Brock Bierman, Assistant Administrator of the U.S. Agency for International Development (USAID) (R), and Dmitry Nikitenko, the first deputy general director of the N.I. Pirogov National Medical and Surgical Centre, greet each other with an elbow bump next to a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

U.S. ambassador to Russia John Sullivan wearing a protective face mask stands next to a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

U.S. soldiers wearing protective face masks stand next to a shipment of medical aid from the United States, including 50 ventilators, inside a U.S. Air Force C-17 Globemaster transport plane after its landing at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

Workers unload a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

U.S. ambassador to Russia John Sullivan (R) and Brock Bierman, Assistant Administrator of the U.S. Agency for International Development (USAID), stand next to a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool

U.S. ambassador to Russia John Sullivan (R) talks to Brock Bierman, Assistant Administrator of the U.S. Agency for International Development (USAID), next to a U.S. Air Force C-17 Globemaster transport plane which delivered the first batch of medical aid from the United States, including 50 ventilators, at Vnukovo International Airport amid the coronavirus disease (COVID-19) outbreak in Moscow, Russia May 21, 2020. REUTERS/Evgenia Novozhenina/Pool