Three people died and three others were injured when a scaffolding collapsed Wednesday at the construction site of Vietnam's largest hydropower plant in the northern province of Son La.
Representatives of the management board of the plant's contractor said Friday that the accident happened at 10 p.m., when workers of the state-owned Infrastructure Development and Construction Corporation were dismantling the scaffolding.
Part of the structure collapsed suddenly and six workers fell to the concrete floor below from a height of 22 meters.
Three of them died on the spot, while others were rushed to the local hospital with critical injuries, according to the representative, adding they were investigating the accident.
The Son La Hydropower Plant, which broke ground in 2005, was originally expected it to start producing electricity in 2012 with an annual capacity of about 9.4 billion kilowatts, but the power generation target was rescheduled to December this year.
The VND42 trillion (US$2.4 billion) hydropower plant, said to be the biggest in Southeast Asia, is set for completion in 2015.