Ukraine's military reported that the Belarusian troops are also checking the readiness of their transport infrastructure during the drills set to last until June 11.
Lithuanian Prime Minister Inga Ruginiene said a large group of "smuggling balloons" was launched from Belarus toward Lithuania.
Russia launched a drone attack on Kyiv overnight on Oct. 26, striking residential buildings in the capital, officials reported.
"I've always had a great relationship with Vladimir Putin, but this has been very disappointing," U.S. President Donald Trump said.
"I think it's very important we have dialogue because President Trump already has done a lot to solve lots of the world conflicts,” Kirill Dmitriev told Fox News on Oct. 25.
The plant is Russia's fourth-largest oil refinery and processed 13.1 million tons of oil last year, according to Russian estimates.
All mine workers were brought to the surface safely, and none were injured, Ukrainian energy company DTEK said.
The sanctions could be imposed if Russian President Vladimir Putin shows no interest in meaningful negotiations and continues to delay ending Russia's war in Ukraine, Reuters reported.
Russia launched nine Iskander-M ballistic missiles from Rostov and Kursk oblasts overnight, along with 62 Shahed-type attack and decoy drones, according to Ukraine's Air Force.
The claim contradicts Moscow's actual negotiating stance, as Russia continues to reject any compromise and insists on its maximalist demands.
Tymur Tkachenko, the head of the Kyiv City Military Administration, reported that multiple fires had broken out at "several locations on the left bank of the city."
The attack marks the second time in recent days that Ukrainian drones have struck an electrical substation in the region.
