Ukrainian servicemen sit inside their APC after returning from Russian Kursk region, near Russian-Ukrainian border, Sumy region, Ukraine, Wednesday, Aug. 14, 2024. (AP Photo/Evgeniy Maloletka)
Russian President Vladimir Putin, left, leads the meeting with top security and defence officials dedicated to the situation in Kursk and Belgorod border regions, at Novo-Ogaryovo state residence outside of Moscow, Russia, Monday, Aug. 12, 2024. (Gavriil Grigorov, Sputnik, Kremlin Pool Photo via AP)
In this image made from video provided by Russian Emergency Situations Ministry press service, people board a bus during evacuation from a fighting between Russian and Ukrainian forces in Belovsky district, Kursk region, Russia, Monday, Aug. 12, 2024. (Ministry of Emergency Situations press service via AP)
Russian President Vladimir Putin, center, leads the meeting with top security and defence officials dedicated to the situation in Kursk and Belgorod border regions, at Novo-Ogaryovo state residence outside of Moscow, Russia, Monday, Aug. 12, 2024. (Gavriil Grigorov, Sputnik, Kremlin Pool Photo via AP)
Serhii Zaichenko, 63, school guard walks in the corridor of his school which was heavily damaged after Russian airstrike in Mohrytsia, near Russian-Ukrainian border, Sumy region, Ukraine, Wednesday, Aug. 14, 2024. Zaichenko said two people were killed, including one child. (AP Photo/Evgeniy Maloletka)
An elderly woman walks along the road near the Russian-Ukrainian border, Sumy region, Ukraine, Wednesday, Aug. 14, 2024. (AP Photo/Evgeniy Maloletka)
In this photo taken from video released by the Russian Defense Ministry on Friday, Aug. 9, 2024, a column of the Russian Armed Forces move to build up forces conducting active combat operations with Ukrainian formations in the Sudzhansky district of Kursk region of Russia. (Russian Defense Ministry Press Service via AP)
In this photo provided by the Ukrainian Security Service Press Office, over 100 Russian prisoners of war captured by a Security Service special unit during one military action are seen in a shelter in Kursk region, Russia, Wednesday, Aug. 14, 2024. (Ukrainian Security Service Press Office via AP)
In this photo provided by the Ukrainian Security Service Press Office, over 100 Russian prisoners of war captured by a Security Service special unit during one military action are seen in a shelter in Kursk region, Russia, Wednesday, Aug. 14, 2024. (Ukrainian Security Service Press Office via AP)
A Ukrainian armoured military vehicle travels past a burned car near the Russian-Ukrainian border, Sumy region, Ukraine, Wednesday, Aug. 14, 2024. (AP Photo/Evgeniy Maloletka)
In this photo provided by the Ukrainian Security Service Press Office, over 100 Russian prisoners of war captured by a Security Service special unit during one military action are seen in a shelter in Kursk region, Russia, Wednesday, Aug. 14, 2024. (Ukrainian Security Service Press Office via AP)
Ukrainian servicemen ride atop on armoured vehicle at the Russian-Ukrainian border in Sumy region, Ukraine, Wednesday, Aug. 14, 2024. (AP Photo/Evgeniy Maloletka)
Residents of an apartment building damaged after shelling by the Ukrainian side stand near the building in Kursk, Russia, Sunday, Aug. 11, 2024. (AP Photo)
People evacuated from a fighting between Russian and Ukrainian forces in Kursk region sit next to tents at a temporary residence center in Kursk, Russia, Monday, Aug. 12, 2024. (AP Photo)
Ukrainian servicemen ride atop on armoured vehicle at the Russian-Ukrainian border in Sumy region, Ukraine, Wednesday, Aug. 14, 2024. (AP Photo/Evgeniy Maloletka)
A local woman hauls her bicycle in front of Ukrainian APC near Russian-Ukrainian border, Sumy region, Ukraine, Wednesday, Aug. 14, 2024. (AP Photo/Evgeniy Maloletka)
A Ukrainian tank passes by a burning car near the Russian-Ukrainian border, Sumy region, Ukraine, Wednesday, Aug. 14, 2024. (AP Photo/Evgeniy Maloletka)
In this photo provided by the Ukrainian Security Service Press Office, over 100 Russian prisoners of war captured by a Security Service special unit during one military action are seen in a shelter in Kursk region, Russia, Wednesday, Aug. 14, 2024. (Ukrainian Security Service Press Office via AP)
In this image made from video provided by Russian Emergency Situations Ministry press service, people board a bus during evacuation from a fighting between Russian and Ukrainian forces in Belovsky district, Kursk region, Russia, Monday, Aug. 12, 2024. (Ministry of Emergency Situations press service via AP)
In this photo taken from video released by the Russian Defense Ministry on Sunday, Aug. 11, 2024, Ka-52 helicopters gunships of the Russian air force take off to air strike on concentrations of manpower, armored vehicles and automobile military equipment of the Ukrainian Armed Forces in the border area of the Kursk region. (Russian Defense Ministry Press Service via AP)
In this photo taken from video released by the Russian Defense Ministry on Friday, Aug. 9, 2024, a column of the Russian Armed Forces move to build up forces conducting active combat operations with Ukrainian formations in the Sudzhansky district of Kursk region of Russia. (Russian Defense Ministry Press Service via AP)
In this photo taken from video released by the Russian Defense Ministry on Saturday, Aug. 10, 2024, Russian Army tanks take a position at an area of Kursk region of Russia. (Russian Defense Ministry Press Service via AP)