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An Afghan medic carries a protestor wounded during an anti-U.S. demonstration in Mehterlam, Laghman province east of Kabul, Afghanistan, Saturday, Feb. 25, 2012. Protesters threw rocks at police, government buildings and a U.N. office in eastern Afghanistan on Saturday, kicking off a fifth day of riots sparked by the burning of Qurans at a U.S. base, officials said. (AP Photo/Rahmat Gul)

Afghans kill two US troops in latest attack

Two American soldiers were killed by Afghan colleagues on Thursday, the latest in a series of such attacks after the burning of Korans at a US base sparked widespread violent protests.