Death Toll Rises To 121 In China Port Explosion
![Chinese soldiers, policemen and paramilitary policemen bow their heads at a memorial service for victims of the Tianjin blasts near the disaster's epicenter in northeastern China's Tianjin municipality Tuesday, Aug. 18, 2015. Thunderstorms on Tuesday complicated recovery efforts from last week's massive deadly explosions at a warehouse in Tianjin's port that exposed dangerous chemicals — including some that could become flammable on contact with water. (Chinatopix Via AP)](http://www.impomag.com/sites/impomag.com/files/Tianjin%20Memorial%20Service.jpg)
Among the dead from the Aug. 12 disaster are 67 firefighters, while another 37 firefighters missing, the government said on its official microblog.
It said that 11 policemen are also among the dead and missing, making it the worst disaster for first responders in recent Chinese history.
The cause of the disaster is still under investigation, although state media reports say the warehouse storing sodium cyanide and other dangerous chemicals was located too close to residential areas and may have obtained falsified safety approvals.
Technicians have detected levels of cyanide as much as 356 times the safe level within a 3-kilometer-radius (1.8-mile-radius) of the evacuated area, although no abnormal contamination was found outside the area.
Small animals such as rabbits, pigeons and chickens have been placed in the disaster zone to test whether it is safe for humans, while workers in hazmat suits clear charred car bodies, crumpled shipping containers and other wreckage from the area.