Russian forces shelled an evacuation route for civilians trapped in the besieged city of Mariupol in violation of a ceasefire agreement on Tuesday, Ukraine foreign ministry spokesperson Oleg Nikolenko said on Twitter.

“8 trucks 30 buses ready to deliver humanitarian aid to Mariupol and to evac (evacuate) civilians to Zaporizhzhia. Pressure on Russia MUST step up to make it uphold its commitments,” he said.