Bangkok | A large explosion at a fireworks warehouse in southern Thailand killed at least ten people and wounded dozens, officials said.

The Narathiwat province's Public Relations Department also said that at least 118 people were hurt, and that residents of more than 200 households were affected in the explosion that occurred on Saturday.

It said that officials believe there are still a number of people trapped under the debris waiting to be rescued.

Videos posted on social media from the site show a huge plume of smoke over the area and many damaged structures, cars and motorbikes, as well as streets covered with debris. Many of the houses and other buildings have collapsed roofs and walls.

The local public relations agency reported that the explosion caused damages in a radius of about 500 metres (1,640 feet). About 100 residences in the area were damaged, according to the Department of Disaster Prevention and Mitigation.

Sanan Pongaksorn, the provincial governor, told public broadcaster Thai PBS that the blast was likely ignited by construction work that was taking place in the warehouse, with sparks from metal welding causing the fireworks stored inside to catch fire and explode.