Pope Francis has renewed his appeal for peace in Ukraine and has warned the world again of the danger of the conflict escalating into a nuclear war.

The Holy Father recalled the Cuban Missile Crisis of 1962 and urged Russia, Ukraine and their allies to seek the “way of peace”.

“We should not forget the danger of nuclear war that menaced the world right at that time,” the Pope said.

“Why don’t we learn from history?” the Pontiff continued, adding that “even at that moment, there were conflicts and huge tensions, but the way of peace was chosen”.