Major Ukrainian cities are coming under renewed attack from Russian air strikes. Powerful explosions hit the western city of Lviv this morning. 

Regional officials say at least six people were killed and several others injured. Initial reports suggest the airstrikes targeted military infrastructure facilities. But several civilians have been reported among the wounded. Lviv had largely been spared the worst of the violence until now.

In the eastern city of Mariupol, a few thousand fighters and some civilians are believed to have been encircled in the Azov-stal steel plant near the port. It's the last pocket of Ukrainian resistance in the city. 

Russia claims to have complete control of all of Mariupol's urban areas, and has left much of it destroyed.

Source: DW - Youtube