Thirteen people have been killed and twelve injured in a tunnel collapse at the largest hydroelectric plant project Coca Codo Sinclair in Ecuador.
Ecuador president Rafael Correa confirmed the death of the workers in a "serious" accident, reports Chinese news agency Xinhua.
The deceased includes ten Ecuadorians and three Chinese.
The injured have been carried to hospitals in Lago Agrio and Lumbaqui, reports Ecuador’s official news agency, Andes.
National Risk Management Ministry stated that the accident was caused by a "collapse in a tunnel" which had affected the high-pressure pipes inside the engine room, reports Xinhua.
Located in Sucumbios province, around 150km east of the capital Quito, the plant is currently under development by Chinese firm Sinohydro.
Construction for the plant was initiated in 2010, and is expected to be concluded by 2016.
Once operational, the plant is expected to meet 44% of Equador’s power requirements with an annual average generation capacity of 8.63GWh.