A man sings and plays the accordion next to his dog on the embankment of the Tom River after the beginning of an ice drift in the Siberian city of Tomsk, Russia April 17, 2021. REUTERS/Taisiya Vorontsova

People take pictures on chunks of ice after the beginning of an ice drift on the Tom River in the Siberian city of Tomsk, Russia April 17, 2021. REUTERS/Taisiya Vorontsova

People walk on chunks of ice after the beginning of an ice drift on the Tom River in the Siberian city of Tomsk, Russia April 17, 2021. REUTERS/Taisiya Vorontsova

The sun sets over a lake in Almaty Region, Kazakhstan April 17, 2021. REUTERS/Pavel Mikheyev

A service member of the Ukrainian armed forces rides a bicycle at fighting positions on the line of separation near the rebel-controlled city of Donetsk, as the Avdiivka Coke Plant seen in the background, near Donetsk, Ukraine April 17, 2021. REUTERS/Serhiy Takhmazov

A service member of the Ukrainian armed forces washes clothes at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 17, 2021. REUTERS/Serhiy Takhmazov

A service member of the Ukrainian armed forces washes clothes at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 17, 2021. REUTERS/Serhiy Takhmazov

A service member of the Ukrainian armed forces smiles at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 17, 2021. REUTERS/Serhiy Takhmazov

Service members of the Ukrainian armed forces speak at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 17, 2021. REUTERS/Serhiy Takhmazov

A service member of the Ukrainian armed forces uses periscopes while observing the area at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 17, 2021. REUTERS/Serhiy Takhmazov

А municipal worker uses a pressure washer to clean a monument to Soviet poet Vladimir Mayakovsky in Moscow, Russia April 17, 2021. REUTERS/Evgenia Novozhenina

Municipal worker cleans a monument to Soviet poet Vladimir Mayakovsky in Moscow, Russia April 17, 2021. REUTERS/Evgenia Novozhenina

А municipal worker uses a pressure washer to clean a monument to Soviet poet Vladimir Mayakovsky in Moscow, Russia April 17, 2021. REUTERS/Evgenia Novozhenina

А municipal worker uses a pressure washer to clean a monument to Soviet poet Vladimir Mayakovsky in Moscow, Russia April 17, 2021. REUTERS/Evgenia Novozhenina

People dump buckets of ice water on themselves during the annual spring event "Awakening" in the Siberian city of Tomsk, Russia April 17, 2021. REUTERS/Taisiya Vorontsova TPX IMAGES OF THE DAY

A vendor sells herbs including roots of aconitum soongaricum at a market in Bishkek, Kyrgyzstan April 17, 2021. Kyrgyzstan will use a herbal tonic containing extracts of aconitum soongaricum root to treat the coronavirus disease (COVID-19), its health minister said after his president praised the remedy - despite warnings from a medical expert that it contained a potentially lethal poison. REUTERS/Vladimir Pirogov

A vendor sells herbs including roots of aconitum soongaricum at a market in Bishkek, Kyrgyzstan April 17, 2021. Kyrgyzstan will use a herbal tonic containing extracts of aconitum soongaricum root to treat the coronavirus disease (COVID-19), its health minister said after his president praised the remedy - despite warnings from a medical expert that it contained a potentially lethal poison. REUTERS/Vladimir Pirogov

Roots of aconitum soongaricum are displayed for sale at a market in Bishkek, Kyrgyzstan April 17, 2021. Kyrgyzstan will use a herbal tonic containing extracts of aconitum soongaricum root to treat the coronavirus disease (COVID-19), its health minister said after his president praised the remedy - despite warnings from a medical expert that it contained a potentially lethal poison. REUTERS/Vladimir Pirogov

New recruits of the separatist Donetsk People's Republic's armed forces line up during a training in Donetsk, Ukraine April 16, 2021. REUTERS/Alexander Ermochenko

New recruits of the separatist Donetsk People's Republic's armed forces line up during a training in Donetsk, Ukraine April 16, 2021. REUTERS/Alexander Ermochenko

New recruits of the separatist Donetsk People's Republic's armed forces march during a training in Donetsk, Ukraine April 16, 2021. REUTERS/Alexander Ermochenko

New recruits of the separatist Donetsk People's Republic's armed forces line up during a training in Donetsk, Ukraine April 16, 2021. REUTERS/Alexander Ermochenko

New recruits of the separatist Donetsk People's Republic's armed forces line up during a training in Donetsk, Ukraine April 16, 2021. REUTERS/Alexander Ermochenko

New recruits of the separatist Donetsk People's Republic's armed forces line up during a training in Donetsk, Ukraine April 16, 2021. REUTERS/Alexander Ermochenko

New recruits of the separatist Donetsk People's Republic's armed forces line up during a training in Donetsk, Ukraine April 16, 2021. REUTERS/Alexander Ermochenko

New recruits of the separatist Donetsk People's Republic's armed forces attend a training in Donetsk, Ukraine April 16, 2021. REUTERS/Alexander Ermochenko

Russian Foreign Minister Sergei Lavrov shakes hands with Serbian Foreign Minister Nikola Selakovic during a news conference following their meeting in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov attends a news conference following a meeting with Serbian Foreign Minister Nikola Selakovic in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov attempts to shake hands with Serbian Foreign Minister Nikola Selakovic during a news conference following their meeting in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov and Serbian Foreign Minister Nikola Selakovic arrive for a news conference following their meeting in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov and Serbian Foreign Minister Nikola Selakovic attend a news conference following their meeting in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Serbian Foreign Minister Nikola Selakovic attends a news conference following a meeting with Russian Foreign Minister Sergei Lavrov in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov and Serbian Foreign Minister Nikola Selakovic arrive for a news conference following their meeting in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov and Serbian Foreign Minister Nikola Selakovic arrive for a news conference following their meeting in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Serbian Foreign Minister Nikola Selakovic attends a news conference following a meeting with Russian Foreign Minister Sergei Lavrov in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

Russian Foreign Minister Sergei Lavrov attends a news conference following a meeting with Serbian Foreign Minister Nikola Selakovic in Moscow, Russia April 16, 2021. Yuri Kochetkov/Pool via REUTERS

An interior view shows a villa that once belonged to Gulnara Karimova, a jailed daughter of late President of Uzbekistan Islam Karimov, in Sijjak, Uzbekistan April 16, 2021. The government of Uzbekistan is auctioning off the luxury villa on the condition that it is turned into a hotel. REUTERS/Mukhammadsharif Mamatkulov

A view shows a villa that once belonged to Gulnara Karimova, a jailed daughter of late President of Uzbekistan Islam Karimov, in Sijjak, Uzbekistan April 16, 2021. The government of Uzbekistan is auctioning off the luxury villa on the condition that it is turned into a hotel. REUTERS/Mukhammadsharif Mamatkulov

A woman walks along the street in Moscow, Russia April 16, 2021. REUTERS/Evgenia Novozhenina

People walk along Red Square in Moscow, Russia April 16, 2021. REUTERS/Evgenia Novozhenina

A cat walks as a service member of the Ukrainian armed forces stands guard at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 16, 2021. REUTERS/Serhiy Takhmazov

A service member of the Ukrainian armed forces points a weapon at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 16, 2021. REUTERS/Serhiy Takhmazov

Service members of the Ukrainian armed forces speak at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 16, 2021. REUTERS/Serhiy Takhmazov

A fisherman is seen on the ice-covered Irtysh River near an oil refinery in Omsk, Russia April 15, 2021. REUTERS/Alexey Malgavko

Libya's Prime Minister Abdulhamid Dbeibeh attends a meeting with Russia's Foreign Minister Sergei Lavrov in Moscow, Russia April 15, 2021. Yuri Kochetkov/Pool via REUTERS

Russia's Foreign Minister Sergei Lavrov attends a meeting with Libya's Prime Minister Abdulhamid Dbeibeh in Moscow, Russia April 15, 2021. Yuri Kochetkov/Pool via REUTERS

Russia's Foreign Minister Sergei Lavrov attends a meeting with Libya's Prime Minister Abdulhamid Dbeibeh in Moscow, Russia April 15, 2021. Yuri Kochetkov/Pool via REUTERS

Russia's Foreign Minister Sergei Lavrov attends a meeting with Libya's Prime Minister Abdulhamid Dbeibeh in Moscow, Russia April 15, 2021. Yuri Kochetkov/Pool via REUTERS

A service member of the Ukrainian armed forces is reflected in a mirror at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 15, 2021. REUTERS/Anastasia Vlasova

A service member of the Ukrainian armed forces stands guard at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 15, 2021. REUTERS/Anastasia Vlasova

A service member of the Ukrainian armed forces uses a periscope while observing the area at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 15, 2021. REUTERS/Anastasia Vlasova

A service member of the Ukrainian armed forces holds a weapon at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 15, 2021. REUTERS/Anastasia Vlasova

Service members of the Ukrainian armed forces gather at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 15, 2021. REUTERS/Anastasia Vlasova

A service member of the Ukrainian armed forces smokes at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 15, 2021. REUTERS/Anastasia Vlasova TPX IMAGES OF THE DAY

A service member of the Ukrainian armed forces holds a kitten while speaking with his comrades at fighting positions on the line of separation near the rebel-controlled city of Donetsk, Ukraine April 15, 2021. REUTERS/Serhiy Takhmazov

Specialists walk downstairs as they relocate a non-transparent bag containing the body of a resident of an apartment building, who locals said was killed by a shell fragment during a recent artillery attack, on the outskirts of the rebel-controlled city of Donetsk, Ukraine April 15, 2021. REUTERS/Alexander Ermochenko

People wait their turn before entering the coronavirus disease (COVID-19) vaccination centre located at the shopping mall MEGA Alma-Ata in Almaty, Kazakhstan April 14, 2021. Kazakhstan set up COVID-19 inoculation facilities at shopping malls and bazaars in hope to speed up its mass vaccination campaign. Picture taken April 14, 2021. REUTERS/Mariya Gordeyeva

A woman receives a dose of the Sputnik V (Gam-COVID-Vac) vaccine against the coronavirus disease (COVID-19) in a vaccination centre located at the shopping mall MEGA Alma-Ata in Almaty, Kazakhstan April 14, 2021. Kazakhstan set up COVID-19 inoculation facilities at shopping malls and bazaars in hope to speed up its mass vaccination campaign. Picture taken April 14, 2021. REUTERS/Mariya Gordeyeva

A man receives a dose of the Sputnik V (Gam-COVID-Vac) vaccine against the coronavirus disease (COVID-19) in a vaccination centre located at the shopping mall MEGA Alma-Ata in Almaty, Kazakhstan April 14, 2021. Kazakhstan set up COVID-19 inoculation facilities at shopping malls and bazaars in hope to speed up its mass vaccination campaign. Picture taken April 14, 2021. REUTERS/Mariya Gordeyeva

People wait their turn before entering the coronavirus disease (COVID-19) vaccination centre located at the shopping mall MEGA Alma-Ata in Almaty, Kazakhstan April 14, 2021. Kazakhstan set up COVID-19 inoculation facilities at shopping malls and bazaars in hope to speed up its mass vaccination campaign. A sign reads: "Waiting area". Picture taken April 14, 2021. REUTERS/Mariya Gordeyeva