Two thousand Ukrainian troops thought to be trapped inside steelworks after civilian evacuation

• Russia-Ukraine war: latest updates

Members of Ukraine’s Azov battalion trapped inside Mariupol’s Azovstal steel plant have said they fear they will be killed if captured by Russian forces, as they pleaded with Ukrainian authorities to help arrange their extraction.

Speaking to the media from inside the besieged steelworks, an Azov commander and lieutenant, looking gaunt and pale, said they had defended the city for the people of Ukraine and the rest of the world and needed a third party to negotiate their exit whether by land or sea.

Rescue attempts impossible due to constant shelling in Bilohorivka, says Luhansk governor

• Russia-Ukraine war – latest updates

Sixty people are feared to have been killed after a village school in eastern Ukraine took a direct hit in a Russian air raid, with rescue attempts said by the regional governor to be impossible due to constant shelling.

Russian attacks in the east and south intensified at the weekend ahead of Monday’s symbolic Victory Day celebrations, with the Black Sea city of Odesa coming under repeated missile strikes and the remaining Ukrainian fighters in the Azovstal steelworks in the besieged port city of Mariupol staging a press conference on Sunday saying they had been “abandoned” by the government as Russian attacks continued

Drone attack at Snake Island results in apparent destruction of landing craft as counter-offensive in north gathers pace

• Russia-Ukraine war: latest updates

The Ukrainian port city of Odesa was hit by renewed Russian missile strikes on Saturday, as military authorities in Kyiv claimed one of their drones had sunk a second Russian ship in the Black Sea.

A counter-offensive against Russia also appeared to be gathering pace in the north, where analysts said that Ukraine’s military may be able to push Russian forces out of artillery range of the country’s second city of Kharkiv in the coming days.