5 US troops killed by friendly fire in Afghanistan

KABUL, Afghanistan (AP) — Five American troops were killed in an apparent coalition airstrike in southern Afghanistan, officials said today, in one of the worst friendly fire incidents involving United States and coalition troops since the start of the nearly 14-year war.

The U.S.-led international coalition said the service members were killed in an apparent friendly fire incident, which an Afghan official said was an airstrike in southern Zabul province. A statement said all five soldiers died on Monday but did not give further details.

"Five American troops were killed yesterday during a security operation in southern Afghanistan. Investigators are looking into the likelihood that friendly fire was the cause. Our thoughts and prayers are with the families of these fallen," Pentagon spokesman Rear Adm. John Kirby said.

If confirmed, it would be one of the most-serious cases involving coalition-on-coalition friendly fire during the war.

"The casualties occurred during a security operation when their unit came into contact with enemy forces. Tragically, there is the possibility that fratricide may have been involved. The incident is under investigation," the coalition said in an earlier announcement.