Three soldiers killed by man in an Afghan uniform

Official: Man in Afghan security uniform kills 3 US troops
By Chelsea J. Carter and Masoud Popalzai
CNN
updated 8:31 AM EDT, Fri August 10, 2012

STORY HIGHLIGHTS
Six civilians died when a vehicle struck a mine
A man in an Afghan uniform shot and killed three U.S. troops in Helmand province Friday
A suicide bomb attack killed five people in Afghanistan's Kunar province Wednesday
Among the dead: senior members of the 4th Brigade Combat Team, 4th Infantry Division

Kabul, Afghanistan (CNN) -- A man in an Afghan military uniform killed three U.S. troops Friday in southern Afghanistan, the latest in a series of assaults against NATO soldiers by Afghans clad in security force garb.

The man opened fire on the troops in the volatile Helmand province, said Maj. Lori Hodge, a spokeswoman for the International Assistance Security Force. Hodge did not immediately provide details about the attack, one of a handful in recent weeks to target NATO troops.

In the strikes, known as "green-on-blue" attacks, Afghan security forces or militants dressed as local police or soldiers target coalition troops.

Coalition forces have been working to address the problem. Gen. John Allen, commander of the NATO-led force, has said "an erosion of trust" has emerged from the attacks.

Speaking in March, he said that the systems the Afghans and coalition had put in place to help prevent these attacks were having an effect. read more here