At least 15 people were killed and dozens injured after a huge explosion rocked a gas plant workshop in China’s Yima city on Friday.

According to authorities in central China, on Sunday the death toll in a gas plant explosion has risen to 15 with another 15 seriously injured.

“Three people who were previously missing have been found dead, said local authorities.

All production at the plant has been stopped. More than 270 rescuers were on the scene, according to the emergency management ministry.

China’s Ministry of Emergency Management said, “About 270 firefighters and rescue workers have completed three rounds of search and rescue since the Friday evening explosion in Yima city in Henan province.

The blast shattered windows and doors of buildings in a three-kilometre (1.9-mile) radius.

Beijing News quoted a local resident as saying, “The sound was extremely loud with a ball of fire and clouds of smoke in the air”.

“Customers who bought goods outside were hurt by broken glass,” he further said.

Deadly industrial accidents are common in China, where safety regulations are often poorly enforced.

In March, a blast at a chemical plant in eastern Jiangsu province killed 78 people and injured hundreds.

The Yima gas plant of Henan Gas Co Ltd was established in 1997 covering an area of 87 hectares with more than 1,200 employees.