Photo taken on Feb. 25, 2015 shows the scene of a road accident site in Bachu County, Kashgar Prefecture, northwest China's Xinjiang Uygur Autonomous Region. A long-distance bus overturned on an expressway which links Kashgar with Aksu, late Tuesday night, killing 22 people and injuring 38 others. (Xinhua)

URUMQI, Feb. 25 (Xinhua) -- A long-distance bus overturned on an expressway in northwest China's Xinjiang Uygur Autonomous Region late Tuesday night, killing 22 people and injuring 38 others, local authorities confirmed Wednesday.

The accident occurred at about 11:27 p.m. Tuesday in Bachu County, Kashgar Prefecture, the prefecture's government said in a statement. The 428-km-long expressway links Kashgar with Aksu.

The injured have been rushed to hospital.

An investigation into the cause of the accident is under way.