UPDATE 1-Four injured as military helicopter crashes in Turkey's Istanbul - governor

Four soldiers were injured when a military helicopter crashed in a residential neighbourhood on the Asian side of Turkey's biggest city Istanbul on Monday, the city's governor said on Twitter.

The helicopter went down in an area of apartment buildings, Istanbul Governor Ali Yerlikaya said. Television images showed smoke rising from the area and ambulances rushing to the scene. The four soldiers were taken to the hospital, the governor said. (Reporting by Ece Toksabay Editing by Dominic Evans)