
Bangkok governor Apirak Kosayodhin, who later inspected the accident scene, said the collapsed billboard was not among the 28 billboards earmarked for demolition by city authorities.
"This shows that every advertising billboard is at risk of toppling during storm, whether it is firmly installed or not," he said.
The district office would contact the injured to provide them with assistance.
He also said that the city would speed up the demolition of the 28 billboards deemed unstable, and the process should be completed by this month's end.