Ukraine’s Mariupol defenders face final showdown with Russian invaders

Ukraine's last soldiers in the port city of Mariupol face a brutal final showdown Sunday with besieging Russian forces, who are hoping to deliver a critical win ahead of the country's victory day.

President Volodymyr Zelensky is also set to hold talks with G7 leaders via video conference to discuss the situation in his country, which fears a renewed intensity to Moscow's offensive after the evacuation of civilians from Mariupol's Azovstal steelworks.

The complex -- the final pocket of Ukrainian resistance in the devastated port city -- has taken on a symbolic value in the war, with the last soldiers holed up in its sprawling network of underground tunnels and bunkers.

Taking full control of Mariupol would allow Moscow to create a land bridge between the Crimean peninsula, which it annexed in 2014, and regions run by pro-Russian separatists in the east.

"The enemy is trying to finish off the defenders of Azovstal, they are trying to do it before May 9 to give (Russian President) Vladimir Putin a gift," Oleksiy Arestovych, an aide to Ukraine's president, said.

Ukraine's far-right Azov battalion, leading the defence at the steelworks, said one of its fighters had been killed and six wounded when Russian forces opened fire during an earlier attempt to evacuate people by car.

Zelensky said hundreds of people had been removed from the plant Saturday and that preparations for another stage of evacuation comprising the wounded and medics were under way.

Civilians who have escaped have described passing through Russian "filtration" sites where several evacuees told AFP they were questioned, strip-searched, fingerprinted, and had their phones and documents checked.

"They asked us if we wanted to go to Russia or to stay...