HOHHOT, Feb. 25 (Xinhua) -- Ten suspects have been detained following a deadly mine accident that killed 22 people in northern China's Inner Mongolia Autonomous Region, authorities said.

Photo taken on Feb 23, 2019 shows the accident site at a lead, zinc and silver mine under Yinman Mining Company in West Ujimqin Banner, Xilingol League, North China's Inner Mongolia autonomous region. (Photo/Xinhua) 

The suspects were detained for allegedly "negligently causing a serious accident." Another suspect is on bail pending trial, according to the public security bureau of Xilingol League.

The death toll from the accident rose to 22 after one of the critically injured died, local authorities said Monday.

The critically injured died Sunday afternoon after treatment failed, the rescue headquarters said. Twenty-eight others were still being treated in the hospital.

The accident occurred around 8:20 a.m. Saturday as a shuttle vehicle taking the 50 workers underground lost control due to faulty brakes and crashed into the side of the tunnel at a lead, zinc and silver mine under Yinman Mining Company in West Ujimqin Banner, Xilingol League.