Shanghai Daily news

Three chemical factory workers were in critical condition after a blast in their factory yesterday morning.
Doctors from Ruijin Hospital said they were severely burned, one with burns over 80 percent of his body, and their condition was life-threatening.
A fourth worker was also hospitalized but his condition was less severe.
The blast happened at about 8am in Shanghai Yazhou Chemical Factory in Qingpu District after a leak that caused a fire and explosion.
The factory was storing various dangerous and volatile chemicals but the exact cause of the blast was not known. The fire was put out at 10:45am.
A worker surnamed Ni said the workshop stored at least three different kinds of liquid chemicals, including methyl alcohol.
Many workers were on the duty at the time of the blast, but most of them managed to escape .