One U.S. service member was killed and two others wounded after an attack on U.S. troops in Somalia on Thursday that came a month after the first major deployment of American troops to the African nation since 1994.

The U.S. troops were conducting an advise-and-assist mission with the Somali National Army when they were attacked about 40 miles west of Mogadishu, according to a statement from U.S. Africa Command. A Pentagon official told the Washington Examiner that the dead service member was a Navy SEAL.