LIVE UPDATES: 790 Ukrainian Drones Destroyed Since Start of Special Op, Russian MoD Says

"This evening’s discussion with PM Viktor Orban was helpful to clarify issues related to sanctions and energy security. We made progress, but further work is needed," she tweeted.

Additionally, von der Leyen said she will convene a video conference with regional players to strengthen regional cooperation on oil infrastructure.

Pentagon chief Lloyd Austin discussed latest US military assistance package for Ukraine worth $150 million with his Ukrainian counterpart, press secretary John Kirby said on Monday.

"Secretary [Austin] also continued his routine conversations with the Ukrainian Ministry of Defense, Minister [Oleksii] Reznikov. They had yet another talk this morning. Secretary highlighted for Minister Reznikov the President's [Joe Biden] announcement last Friday of an additional $150 million in presidential drawdown authority to continue to provide Ukraine's armed forces with artillery, counter artillery radars and electronic jamming equipment. And the minister was grateful for this additional support," Kirby said during a press briefing.

The United Nations and the International Committee of the Red Cross (ICRC) may conduct more evacuation operations in Mariupol and will continue to work with all parties to the conflict to ensure the safety of those who want to leave, Haq added.

"There may be further operations," Haq told reporters when asked whether there will be more coordinated operations by the UN and ICRC to evacuate people from Mariupol area. "Of course, on our side, we will continue with our engagement with relative parties to the conflict to make sure that all those who want to leave, have the guarantees to do so safely."

Since the beginning of the Russian special military operation in Ukraine, the Russian forces have destroyed 790 Ukrainian drones, the official spokesman for the Russian Defence Ministry, Major General Igor Konashenkov said.

Moldova is concerned about a series of incidents that have happened in Transnistria against the backdrop of the Ukraine crisis, but believes the risk of military escalation is low, Prime Minister Natalia Gavrilita said on Monday,

"We are worried about the incidents that have happened in Transdniestria region, at the same time, as I have mentioned, we are in permanent touch with our partners, we exchange information and analysis," Gavrilita said at a joint press conference with Secretary General Antonio Guterres. "Our information indicates the low risk of escalation of military actions."

The prime minister said there is no need to announce mobilization.

"So far we have no reason to be worried and to resort to such actions," she added.

The United States has commenced a two-week M777 howitzer maintenance course for Ukrainians with a first class to begin later on Monday, a senior US Defence Department official said.

“We've also started a two-week M777 maintainer course and we expect that the first class will begin training today. That's the plan,” the official said during a press briefing.

More than 310 Ukrainian soldiers have so far completed their training on M777 howitzers and an additional group of 50 soldiers is currently going through another course, the official added.

The United States has committed 90 155 mm howitzers to Ukraine. To date, 85 of them have been delivered to the country, the official noted.