BEIJING - The victims of a fire in Beijing's southern Daxing district this month (November) were poisoned by carbonic oxide from a newly installed underground refrigeration facility, authorities said.
And none of the 11 workers working on the refrigeration facility, including those wiring the electrical circuits and debugging the facility, were professionally qualified for their jobs, the local government said.
Carbonic oxide, more commonly known as carbon monoxide, is a colourless gas and a product of the incomplete combustion of carbon.
The blaze, which occurred in an apartment building with more than 400 residents on the night of Nov 18, killed 19 people and injured eight others. Six of the injured who were hospitalised have been discharged.
The police are still investigating the cause of the fire, district officials said at a news conference on Thursday (Nov 23).
Of the victims, eight were under 18 years old, with the youngest just one year old. The oldest victim was a 60-year-old man. Most of the victims were from Shandong, Henan and Hebei provinces, which are home for many migrant workers.
The building, with a total floor space of 20,000 sq m, has two floors above ground in most parts and three in another part－plus a basement. A person identified only as Fan started building the structure in 2002.
Fan began installing the refrigeration facility in the basement in March. It was undergoing testing before the fire.
The police detained the refrigeration workers, as well as seven people who managed the apartment block.
Disciplinary watchdogs at the city and district level have established a joint investigation group, dispatching five teams to government departments to collect evidence. The group is also coordinating with the police to investigate how the building could have been built and used without any government objections, the authorities said.
Beijing ordered a 40-day citywide safety check following the fire.
Mr Cai Qi, party chief of Beijing, demanded that inspectors comb the capital inch-by-inch.
He also called for the rooting out of unqualified industrial compounds used for illegal business operations in rural areas of the city to ensure safety.