The test shows that the survivor Han Fengqun who was found at the blast site 60 hours after the blasts hasn't been poisoned, and the death toll of the Tianjin blasts has risen to 123, including 70 firefighters and seven policemen, authorities said at a press conference on Sunday afternoon.

Fifty people are still missing, including 34 firefighters and four policemen, nearly two weeks after the blasts ripped through the warehouses containing dangerous chemicals in Tianjin Port on the night of Aug. 12.

A total of 169 people have been discharged from hospitals. More than 80 medical experts have been sent to Tianjin for the treatment of the injured after the blasts, and 180 medical experts in the city have been organized to guide the treatment after the blasts.