At least 40 people have died after a platform under construction at a power plant's cooling tower in eastern China's Jiangxi province collapsed .
The accident happened in Fengcheng at around 7 am (2300GMT), and rescuers are on the scene.
A work platform at a power plant cooling tower being built in the city of Fengcheng came tumbling down at about 7:30 a.m., an official with the local Work Safety Administration said by telephone.
Deadly accidents are relatively common at industrial sites in China, and anger over lax standards is growing after three decades of swift economic growth marred by incidents from mining disasters to factory fires.
The death toll was likely to rise because an unknown number of people were still trapped, it said. Five injured workers have been sent to hospital.
Television footage and photographs from the site showed iron pipes and wooden planks strewn across the floor of the massive concrete cooling tower.
China has suffered a series of major industrial accidents over recent months blamed on corruption, disregard for safety and pressure to boost production amid a slowing economy.
China has vowed to improve safety at such facilities. President Xi Jinping has said authorities would learn the lessons paid for with blood after chemical blasts in the port city of Tianjin last year killed more than 170 people.