KIEV, November 4. /TASS/. Blasts were heard in the city of Nikolayev in southern Ukraine early on Friday, with air raid alert declared for the region, the Strana portal said.
"Nikolayev’s local Telegram channels reported blasts, which occurred as [air raid] sirens were wailing," the report says.
According to the live online map, air raid alerts were declared in four Ukrainian regions - Vinnitsa, Kirovograd, Nikolayev, and Odessa in the early hours of Friday, but were lifted later in the day.