A suicide bomber wearing an Afghan security uniform detonated his explosives at the entrance to a combined US-Afghan base, killing four Afghan soldiers and a civilian, officials said.
The bomber walked up to a security gate for Afghan soldiers outside Forward Operating Base Bermel in the eastern province of Paktika, near the border with Pakistan, NATO's International Security Assistance Force said.
Four Afghan soldiers and one civilian were killed and six Afghans were wounded in the attack Saturday, NATO's International Security Assistance Force said. No Americans were hurt in the attack.
It was not immediately clear if the bomber had been trying to gain entry to the base.