U.S. forces carry out operation against al-Shabaab in Somalia
No further details about the operation in the African country were immediately available.
Al Shabaab is an Islamist group affiliated with al Qaeda that wants to impose its own strict version of Islam inSomalia. It ruled most of the southern region of Somalia from 2006 until 2011, when African peacekeeping troops marched into the capital, Mogadishu.
African and Somali forces have regained several towns this year, but rebels still hold other centers and tracts of countryside.