A suicide bomber in Afghanistan detonated explosives on Wednesday outside the United States' main military base of Bagram in an attack that wounded five people, Afghan and NATO officials said.
There was no immediate claim of responsibility for the blast.
All five wounded in the attack at the southern entrance to the base were Afghans, said Wahida Shahkar, a spokeswoman for the governor of Parwan province, where the base is located.
"A 30-minute clash also happened between the attackers, who obviously wanted to enter the base, and foreign forces," Shahkar told Reuters.