KABUL, Afghanistan — The explosion that killed an American soldier on an Afghan military base on Monday was a suicide attack, the Pentagon has confirmed.
It was not clear how the attacker got into the base. NATO referred questions to Afghan military officials because it happened on their base.
On Saturday, Afghan Defense Ministry spokesman Gen. Mohammad Zahir Azimi said he had received no information that the attack was a suicide bomb. The Taliban claimed responsibility in calls to news organizations in Kabul soon after the blast.
The Pentagon identified the soldier as Army Sgt. Robert J. Barrett, 20, of Fall River, Mass.
Barrett, the father of a 2-year-old daughter named Sophie Alexandra, served at the inauguration of President Barack Obama in the Massachusetts National Honor Guard's volunteer regiment.
As of Saturday, 961 U.S. troops have died in the Afghanistan war. Identifications as reported by the military and not previously published:
• Army Sgt. Michael K. Ingram Jr., 23, Monroe, Mich.; explosion April 17; Kandahar.
• Army Sgt. Randolph A. Sigley, 28, Richmond, Ky.; April 18, circumstances under investigation; Bagram.