World News from the BBC

The US military in Afghanistan says a man wearing Afghan army uniform has killed an American soldier in the southern province of Kandahar. An Afghan military spokesman said the gunman himself was killed when US troops returned fire. The Afghan spokesman said he was an Afghan special forces officer. The incident happened late on Wednesday night.

A prominent environmental activist in Cambodia has been shot and killed in a

confrontation

with military police in a threatened forest region. The man, Chut Wutty, was travelling with two journalists in the southwest of Cambodia where he'd been helping local people organise protests against land concessions">concessions. Guy De Launey has more. There have been suggestions that military police ordered the reporters to delete images from their cameras, but Mr Wutty objected.

Precisely what happened next is unclear, but shots were fired, and the environmental activist was fatally wounded. A military police spokesman said that one of his officers was also killed and had been doing his duty. Mr Wutty was one of the most outspoken activists in Cambodia. He was well-known for his work with

indigenous

tribes protesting about the destruction of sacred spirit forests by economic land

concessions

granted to well-connected companies.

A United Nations expert on landmines has reportedly said that unexploded cluster

munitions

have been found for the first time in Sri Lanka. The Associated Press news agency says it has seen an email from the expert, Allan Poston, saying small bombs from the weapons were discovered in the north of the country, near to where a child was killed in an explosion last month. The government has denied that it ever used bombs during the civil war with Tamil Tiger rebels.