Team visits controversial Laos dam
The Laos government has for the first time taken international observers on a site visit of a controversial dam on the Mekong River.
Scientists say the dam at Xayaburi would threaten both fish stocks and the livelihoods of the tens of millions of people who live downstream.
Neighbouring Cambodia and Vietnam have asked for construction on the dam to stop pending further research.
There are already four dams on the Upper Mekong in China but Xayaburi would be the first on the lower part of the river, with at least 10 more being proposed.
Jonah Fisher reports from Laos.