Offensive operations by Russia’s army have increased across the front line, according to social media posts by Ukrainian officers, an analysis of information from the General Staff in Kyiv and soldiers speaking to CNN.

A Russian missile killed 34 people on Sunday in an attack that Trump described as "a mistake" and Germany called "a war crime".

The White House said on Tuesday that a productive conversation was held between the US and Russia and shared that there could be economic partnerships between the two countries but before that to take place a ceasefire needs to happen first.

European officials have condemned Russia’s deadly missile attack k on Ukraine’s Sumy that killed and wounded scores.

The defence ministry said its forces had fired "two Iskander-M tactical missiles at the meeting venue" of what it called an operational tactical group of Ukraine's armed forces. It said that more than 60 Ukrainian soldiers were killed in the strike.