Three people died in a residential building fire in eastern China's Shanghai on Tuesday, according to local authorities.
The fire broke out in Putuo district at 1:51 am, the district's fire and rescue detachment said.
Firemen arrived at the building shortly after the blaze started.
Preliminary investigations show that the fire was caused by a faulty lithium-ion battery of an electric bicycle that was kept indoors.
Further investigations into the incident are underway.