Smoke emits from a rear engine of Flight ZH 9969, a A319 passenger jet at Shenzhen Bao'an International Airport in Shenzhen of Guangdong province on Aug 15, 2013.[Photo/CFP]

Twelve people have been injured after an engine caught fire on take-off at Shenzhen Bao'an International Airport in Shenzhen, South China's Guangdong province on Sunday evening, chinanews.com reported.

Twelve passengers suffered slight injuries during the emergency evacuation of flight ZH 9969, a A319 passenger jet operated by Shenzhen Airlines to Beijing just after 6 pm.  

The injured are under treatment. Other passengers onboard were properly resettled.   

The cause of the accident is still under investigation, but it is reported the plane's power system failed and sparked a fire.

The accident didn't affect other flights in the airport.