Four killed as helicopter crashes in Siberian city of Ulan-Ude

A light helicopter crashed on the outskirts of the city of Ulan-Ude on Sunday, local emergency services have confirmed. The aircraft went down in a wooded area, catching fire upon impact. The machine reportedly had four people on board, all of whom were killed in the crash. According to local media, the helicopter belonged to a local business tycoon, Sergey Rogov, but it remains unclear whether he was on board during the incident.