LIVE UPDATES: DPR Forces Urge Ukrainian Military to Discuss Humanitarian Corridor From Mariupol

Semyonov added that the safest route for evacuation from Mariupol is a Novoazovsk humanitarian corridor, because an exit towards Zaporizhzhia, proposed by the Ukrainian authorities, is dangerous due to fighting.

Dujarric added that Guterres is also in talks with Ukrainian and Russian officials.

The whole facility was affected by the conflict, Grossi said. The project was the product of cooperation between Ukraine and the Obama administration and its destruction is "very regrettable," he added.

The recent pullout of the largest oil and gas companies out of Russia is very significant and will have a profound impact on the global energy market, US Special Envoy for Climate John Kerry said on Monday.

"I think the decision of some of our largest oil and gas producing companies in the world to pull out of Russia is very significant and will have profound impact," Kerry said during the opening of the Cambridge Energy Research Associates (CERA) Week conference. "And many other companies are pulling back. I think that's part of this movement, if you will, people realize it's a serious moment for all of us in the world."

UK Prime Minister Boris Johnson announced on Monday an extra 175 million pounds ($230 million) in aid for Ukraine and called on "Ukraine’s friends" around the world to create a coalition of humanitarian, economic and defensive military support to ensure that Russia's military operation "fails."

"I am announcing a further £175 million of UK aid to Ukraine, £100 million of which will be provided directly to the Ukrainian government," Johnson told a press briefing alongside his Canadian and Dutch counterparts, Justin Trudeau and Mark Rutte.

He said the new funds would take the UK’s total aid to Ukraine to 400 million pounds.

US sanctions on Russia over their ongoing military operation in Ukraine carry costs including volatile energy prices that are already being seen in the market, Climate Envoy John Kerry said on Monday.

"I think it is clear that we should do exactly what we are doing with President Biden and our allies. There may be costs, and obviously energy is turbulent right now. We see the volatility of price and demand," Kerry said during the opening of the Cambridge Energy Research Associates (CERA) Week conference.

The city of Mariupol in the Donbass is completely surrounded, the cleansing of areas has begun, said Alexander Semyonov, deputy commander of the Vostok battalion of the DPR.