KABUL, Sept 21 (Reuters) - A suicide bomber targetted a convoy carrying foreign forces on Friday in the Afghan capital, but there was no immediate word of any possible casualties, police said.

They said the attack happened near a bridge in the western outskirts of the city and foreign forces have blocked off the area.

NATO and U.S.-led troops along with several foreign security firms have bases in Kabul, which has witnessed a number of suicide attacks by Taliban guerrillas in recent weeks.

NATO said it had heard about the report of the attack, but said its forces were not involved.

AlertNet news is provided by