KIEV, October 31. /TASS/. Explosions are being heard in the Poltava and Vinnitsa regions of Ukraine, the Ukrainian media outlet Klymenko Time reported on Monday.

"Explosions are being reported in the Poltava region," the media outlet said on its Telegram channel. "There are explosions in the Vinnitsa region. Presumably, air defenses are at work but this information requires confirmation," it said.

The media outlet also reported that air defense systems were at work in the Kiev and Dnepropetrovsk regions of Ukraine.

Ukrainian lawmaker Alexey Goncharenko earlier said on his Telegram channel that air defenses were at work in the Poltava and Kirovograd regions of Ukraine.

The Strana media outlet reported explosions in the Krivoi Rog region, a suburb of Dnieper and the Kiev-controlled area of the Zaporozhye region.

An air raid alert was issued across Ukraine earlier on Monday.