The EU's foreign policy chief on Monday called Russia's attack on the Ukrainian port city Mariupol "a massive war crime", as a string of member states pushed for sanctions on Moscow's key energy sector.   

"What's happening now in Mariupol is a massive war crime, destroying everything, bombarding and killing everybody," Josep Borrell said at the

Ukrainian authorities on Sunday accused Russian forces of bombing a school in the besieged city of Mariupol where some 400 people, including women and children had been sheltering, and of deporting some residents to Russia.

Mariupol has been one of the main targets of Moscow's attacks. Russian shelling has hammered the eastern Ukrainian port for

Residents of the northern Ukrainian town of Novoselytsya should seek shelter after an ammonia leak at a nearby chemical factory, an official said Monday, as intense fighting with Russian forces in the area continues.

Sumy regional governor Dmytro Zhyvytsky said there had been an "ammonia leakage" at the Sumykhimprom facility, affecting an area

Russia said Sunday it has again fired its newest Kinzhal hypersonic missiles in Ukraine, destroying a fuel storage site in the country's south.

The Russian Defense Ministry also said it killed more than 100 members of Ukrainian special forces and "foreign mercenaries" when it targeted a training center in the town of Ovruch in northern Ukraine with