By The Nation
The fire quickly spread through garbage and goods at the shop in the Islamic community on the Islamic Road in Tambon Mae Sot of Mae Sot district.
Fire engines took about an hour to control the blaze.
The worker was identified as Liewtoon, 23. He was rushed to Mae Sot hospital after the accident.
Police said the used cylinder leaked and the gas was ignited by the oxy-acetylene torch.