Kyiv: Russian forces intensified their bombardment on Ukrainian cities on Monday, seized the eastern outskirts of the southern port.

Amidst Russia-Ukraine’s fourth-round talks, Russian forces not stopping bombing on Ukraine cities. The virtual talks between Russia and Ukraine resume today.

For the first time, it has also launched an attack on the western border of Ukraine. More than 20 people have been killed due to the Russian troops launching multiple air raids on a large Ukrainian military facility outside the western city of Lviv near the Polish border.

Ukrainian officials said, in what appeared to be the westernmost attack since Moscow launched an invasion on February 24.

More than 30 Russian cruise missiles targeted the sprawling facility that is less than 25km (15 miles) from the closest border point with Poland, Lviv Governor Maxim Kozitsky said on Sunday. Kozinski said at least 35 people were killed and 134 others were wounded in the attack.

Many Ukrainians have fled to relative safety in Lviv since the launch of Russia’s invasion. The city is also a transit hub for those leaving Ukraine.

Russian forces have an increasingly violent campaign with an eye to encircling the capital even as they sought to bring a political veneer to their occupation in cities they have captured.

Russia’s defence ministry stated that its continuous airstrike destroyed the military establishment and a large amount of weapons supplied by the Western countries, that were being stored at the facility.

The 360 square km (140 square miles) Yavoriv military facility, also known as the International Peacekeeping and Security Center, has long been used to train Ukrainian military personnel, often with instructors from the United States and other NATO countries, Al Jazeera reported.

The base has also hosted international NATO drills and a senior NATO official, Admiral Rob Bauer, previously hailed it as embodying “the spirit of military cooperation” between Ukraine and international forces. As such, the site symbolises a longstanding Russian complaint: that the 30-member Western military alliance has expanded in Eastern Europe too close to Russian territory.

Russia had already taken up wide-scale bombing in Ukrainian cities of Mariupol, Mykolaiv, Kharkiv and Chernihiv. The Russian forces planned to conduct a referendum in Kherson. Kherson is under complete control of Russian troops.

Meanwhile, Russia has warned foreign weapon shipments that are helping Ukrainian fighters defend their country against Russia’s grinding assault.

A few hours later, the White House announced it would send an additional $200 million in arms and equipment for Ukraine.

Ukrainian Defence Minister Oleksii Reznikov said foreign military instructors worked at the facility. “Information about the victims is being clarified,” he said in an online post.