HARBIN, Aug. 15 (Xinhua) -- Two people died from injuries sustained in the fall into a 10-meter-deep pit caused by a road cave-in in northeast China's Harbin city, local authorities said Wednesday.

The other two who also fell into the pit are still in hospital, but the injuries are not life-threatening, according to officials with the city government.

The cave-in happened Tuesday afternoon in Liaoyang Street in Nangang District of Harbin, leaving a 10-square-meter and 10-meter deep pit on the road.

Investigation into the cause of the accident is underway.