It's 12.00 p.m. in Kyiv. Here's what you need to know

Read Time:1 Minute, 44 Second

As Russia continues its relentless and devastating attack on Mariupol, it has issued an apparent ultimatum demanding Ukrainian fighters to surrender by Sunday morning.

Meanwhile, Kyiv and its surrounding region have been under attack once again, following a lull in strikes around the city.

Here are the latest developments:

Mariupol under siege: Russia has issued an apparent ultimatum, ordering Ukrainian forces in the city to lay down their weapons and leave by Sunday. An estimated 100,000 people remain in Mariupol and its immediate surroundings, which are reported to be largely under Russian control, with Ukrainian troops confined to pockets of resistance.
‘Inhuman situation’: On Saturday, Ukrainian President Volodymyr Zelensky called the situation in Mariupol “inhuman,” saying he and his administration had been trying every day to end the weeks-long siege through both military and diplomatic channels.
Zelensky suggests talks: In an article posted on the presidential website, Zelensky said he was open to talks with his Russian counterpart Vladimir Putin — but said negotiations would become impossible if any further Russian war crimes surface.
Escalating attacks: Fighting has intensified in eastern Ukraine, where Russia has concentrated its forces in recent weeks. Officials in the Luhansk region have reported constant shelling of cities including Kreminna and Lysychansk, striking civilian structures such as markets.
Supplies from Belarus: The United Kingdom’s Defense Ministry said Russian forces in Ukraine were directing supplies provided by its ally Belarus toward the east as they prepare for an offensive there.
The sunken warship: Russian state news agency TASS released video Saturday purportedly showing the commander-in-chief of the Russian Navy, Admiral Nikolai Evmenov, meeting with the the crew of the sunk guided-missile cruiser Moskva in the city of Sevastopol. Russia has released no information about casualties aboard the Moskva. It was unclear how many crew members were aboard, or how many survived.
US aid arrives: Supplies from the US have begun arriving in Ukraine, a White House official said on Saturday. The Biden administration’s latest aid package includes heavy-duty weaponry for the first time, including helicopters, cannons and drones.