HANGZHOU, July 9 (Xinhua) -- A helicopter crash in east China's Zhejiang Province on Thursday killed two and injured another five, local authorities said.

The crash happened at 10:30 a.m. at Tongyong airport of Jiande City. It was a Bell 407 aircraft belonging to the general aviation company of the State Grid. Seven people were on board the helicopter.

The injured were rushed to hospital.

Cause of the air crash is under investigation.