HANGZHOU - Over 20 people were injured, including two in critical condition, after a bus overturned Thursday evening in East China's Zhejiang Province, said local traffic police.

The accident occurred at around 7:01 pm in the city of Jiaxing when the bus, carrying 46 people, overturned after colliding with a minibus on a highway linking the cities of Shanghai and Hangzhou, according to police.

All the injured were rushed to hospital, though the exact number has not yet been determined, police said.

The two individuals who were in critical condition are now stable, according to Tan Shen, deputy director at the No 6 Hospital in Shanghai.

The cause of the accident is under investigation.