Banksy appears to have confirmed that he is in Ukraine, after revealing his latest artwork on Instagram.
The mural, which shows a female gymnast balancing on a damaged building, was posted by the anonymous graffiti artist late on Friday night.
The site was captioned as being in Borodyanka, in the Kyiv region of Ukraine.
Two other murals were reportedly seen nearby - one depicting a man resembling Russian President Vladimir Putin being flipped during a judo match with a little boy, and another showing two children using a metal tank trap as a seesaw.
Borodyanka, northwest of Ukraine's capital Kyiv, was one of the towns hardest-hit by Russia's bombardment after the invasion began late in February.
It was liberated in April, but for weeks afterwards, it was isolated - power had been knocked out, shops were closed, transport links were not operating and humanitarian agencies and other volunteer groups were the only sources of food, clothes, and other necessities.
Ukraine's President Volodymyr Zelenskyy said later that the situation in occupied Borodyanka had been "much more horrific" than in Bucha, where hundreds of civilians were found dead in mass graves.