Soldiers say pro-Russian militants used 82 mm mortars.
The video shows 5 Channel reporter Tetiana Ihnatchenko recording an interview with a fighter when shelling starts.
"They probably want to make you fear. They know you're here," a marine told Ihnatchenko after the interview.
Active fighting in Mariupol direction does not cease even during the day. Positions of Ukrainian soldiers outside Shyrokyne allow clearly seeing militants firing grenade launchers from occupied Sakhanka.