Heartbreaking Images From Ukraine

Authorities in the besieged Ukrainian port city of Mariupol say that the Russian military has bombed an art school where about 400 people had taken refuge. 

Local authorities said Sunday that the school building was destroyed and people could remain under the rubble, but there was no immediate word on casualties. 

Terrifying footage has emerged apparently showing Russia firing deadly thermobaric rockets which are claimed to melt human organs.