Prison attack that killed Ukraine PoWs a war crime, says Zelenskiy, amid calls for UN inquiry

Ukraine president says more than 50 people died, as Moscow and Kyiv accuse each other of being behind attack on prison in Russian-occupied Donetsk

• What we know on day 157 of the invasion

Volodymyr Zelenskiy has denounced as a war crime a prison attack that killed dozens of Ukrainian prisoners of war in Russian-occupied Donetsk, as both sides traded blame for the deaths.

In a Friday night address, the Ukrainian president said more than 50 died in the assault on Olenivka, calling it a deliberate Russian war crime, a deliberate mass murder of Ukrainian prisoners of war".