Four people were confirmed dead and 17 others were injured when a bus carrying a tour group from Taiwan crashed on an expressway in northeast China's Jilin Province Monday afternoon, local authorities said.

All the four dead, including a man and three women, were tourists from Taiwan, the publicity department of the Jilin Provincial Committee of the Chinese Communist Party said in a press release.

Of the 17 injured, 15 were Taiwan tourists, it said.

The bus, with a license plate from the neighboring Heilongjiang Province, crashed into a roadside ditch after colliding with a car, the document said.

The injured people are being treated at hospitals in Changchun, capital of Jilin Province.

The cause of the accident is being probed.