Smoke rises from an industrial facility in Lviv, Ukraine as rocket attacks hit the area on Saturday. Photo: Joe Raedle/VCG

One of Saturday’s attacks targeted a fuel base near Lviv, wounding five and causing a fierce fire. Photo: VCG

A resident sitting on a hill watches the smoke rising from a fire in Lviv on Saturday. Photo: Aleksey Filippov/VCG

A priest in Yasnohorodka, Ukraine, stands inside his church which was destroyed during an attack on Saturday. Airstrikes and street fighting have raged in villages around Kyiv. Photo: Celestino Arce/VCG

A rocket part is seen at a cemetery in Mykolaiv, Ukraine, on Saturday. Photo: Petros Giannakouris/VCG

A kindergarten room destroyed by a rocket strike is seen on Sunday in Byshiv, Ukraine. Photo: Anastasia Vlasova/VCG

A destroyed apartment block in the city of Mariupol. Photo: Mikhail Tereshchenko/VCG

Damaged buildings are seen in the background in Mariupol as people try to evacuate Saturday along a humanitarian corridor controlled by the Russian military and pro-Russian separatists. Photo: Stringer/VCG

Russian military hardware is seen on Friday at an entrance to Mariupol. Photo: Valentin Sprinchak/VCG