At least four Afghan intelligence officers are killed in a car bomb explosion in Helmand Province Monday.
Many more have been wounded.
A government spokesman said explosives were placed inside a vehicle parked near the offices of the National Directorate of Security.
(SOUNDBITE) (Pashto) EYEWITNESS JANAN KHAN, SAYING:
"I was sitting near the roadside with my father and my brother when the blast happened. I didn't know what happened. After a few minutes I started crying and asked my father where my brother was, my father calmed me down and said he had been carried to hospital."
Nobody claimed immediate responsibility for the attack.
Despite the presence of thousands of Afghan and foreign troops fighting the Taliban-led insurgency, violence is at its worst since the war was launched in late 2001.
