A suicide car bomber ended months of relative calm in the Afghan capital by exploding his car next to a US Embassy convoy Monday, killing an Afghan teenager and wounding five embassy security personnel on a notoriously dangerous stretch of road. The suicide blast, the first in Kabul since December, propelled one of the armored SUVs across Jalalabad Road, which sees more bombings and rocket attacks than any other area in the capital. The two other US vehicles were also damaged, and flames shot through the wreckage of the suicide car bomb. A 15-year-old Afghan on the side of the road was killed, said Hasib Arian, the district police chief. Five US Embassy security personnel were injured, one seriously, said Col. Tom Collins, the spokesman for NATO's International Security Assistance Force. The US ambassador, Ronald Neumann, was not in the convoy, said embassy spokesman Joe Mellott. A Taliban spokesman, Qari Yousef Ahmadi, said in a phone call to The Associated Press that a Taliban militant from Khost province carried out the attack.