Residents in the Russian city of Tver reported multiple explosions overnight on April 11, with eyewitness videos showing bright flashes in the sky, according to local and social media monitoring channels.

A drone explosion damaged the lower floors of a residential building in the Russian city of Tver on Dec. 12, injuring at least seven people, regional authorities said.

Sumy region: Strikes on infrastructure

A Ukrainian drone attack ignited a fire and led to the partial evacuation of residents in Toropets, a town in Russia's western Tver region, according to local authorities on Wednesday.