Cambodia's government has approved a controversial hydroelectric dam on a tributary of the Mekong River.
"The joint venture involves Cambodian, Chinese and Vietnamese investment of $781m (£488m) and is due to be completed within five years. The project in northern Stung Treng province is known as Lower Sesan 2. Environmental campaigners say the dam will damage the river's biodiversity and devastate the livelihoods and homes of thousands of people. A government statement said the approval came after eight years of study into the possible environmental and social consequences".