ALERT Passengers scramble from smoking Lion Air jet before takeoff at Sumatra airport

Passengers scrambled to open the emergency doors to get out of a Lion Air plane before takeoff at an Indonesian airport, after hearing the sound of an explosion.

Black smoke came from the jet’s power unit as it was waiting at Kualanamu airport in Medan on Sumatra island, with some passengers hurt while exiting the plane, J.A. Barata, a spokesman at the transport ministry, said on Friday. They were no fatalities, he said.

The cause of the incident at 1 pm local time on the Boeing 737-900ER plane is still being investigated.