BMA deputy governor Jakkapan Phiewngam on Wednesday said 1,078 large-sized billboards were erected in various Bangkok districts, especially in Chatuchak and Lat Krabang.

These signs were at risk of being toppled during rainstorms hence their owners must ensure the structures were firmly secured to prevent harm to others under the Building Control Act 2015.

Jakkapan said city officials had the duty to check on the billboards and inform the owners to abide by the law.

He said the private owners of trees must also take precautions, warning that the owners of premises where the trees were planted would be held responsible for any accidents.