By The Nation
Police said the fire broke out at the Pracha Ruam Jai 1 community in Bangkok's Chatuchak district at 4.30am.
Ten fire engines took about an hour to contorl the blaze after it consumed 15 houses.
Witnesses told police that the blaze started in the fifth house from the road. They suspected the fire was started by the son of the woman who owned the house.
They said they heard quarreling inside the house on late Friday night and heard the son threaten to set it on fire.