Explosions were reported in Ukraine's Sumy region in the city of Shostka in the north of the country, according to Obshchestvennoye.
"At least five explosions were heard in Shostka, Sumy Oblast, in the evening," the message posted on the Obshchestvennoye Telegram channel stated.
Later, it was reported that the number of explosions rose to at least ten. An air raid alert was declared in the region at 21:44 local time, according to the Ukrainian Ministry of Digital Transformation.