The deaths of two children killed by shelling while they played football on a school field in eastern Ukraine earlier today must be immediately, fully and impartially investigated, Amnesty International said.

Four other youths were wounded in the attack, which came as separatists and pro-Kiev forces accused each other of breaking a ceasefire agreement.

Denis Krivosheev, Amnesty International’s Deputy Director for Europe and Central Asia, said:

“Today’s shocking attack in Donetsk must be fully investigated. If it is found to constitute a war crime, those responsible must be brought to justice.

"We have witnessed both sides in this conflict ignoring their legal obligations and failing to protect civilians and this is the latest tragic example of the consequences.”