Burgas is Bulgaria's only oil refinery, and was a key part of Lukoil's foreign business empire, which is being threatened after the US joined Britain last month in imposing sanctions on Russia's two largest oil companies over Moscow's war in Ukraine.

The Russian Defense Ministry said Wednesday that Ukrainian troops should surrender to save themselves in Pokrovsk, a transport and supply hub seen as a gateway to bigger nearby cities.

Ukraine has received more American-made Patriot air defense systems to counter Russia's attacks, according to President Volodymyr Zelenskyy

The footage shows how Ukraine is scrambling to defend the embattled city from brutal Russian assaults.

An in-depth analysis of recent Ukrainian military operations against Russia and Poland's air interception activities.

Russia fired one of its largest drone and missile assaults against Ukraine overnight, killing three people, including a 7-year-old girl, and cutting power to thousands as winter approaches,

Ukraine’s capital, Kyiv, endured two consecutive nights of Russian strikes this weekend. The latest overnight attack on Oct. 26 saw drones and ballistic missiles raining down on the city. In total, five people were killed, and more than fifty others were injured.

Fighting for control of the strategic hub of Pokrovsk in eastern Ukraine is intensifying, with the Russian Defense Ministry claiming to have eliminated a group of Ukrainian special forces sent to help defend the area.

Volodymyr Zelensky said he met Ukrainian soldiers near the town of Pokrovsk in Donetsk, where one of the fiercest front-line battles between Russia and Ukraine is underway.