A car bomb blew up as its driver tried to ram a US military convoy in Afghanistan on Wednesday, while in a separate incident, two Canadian soldiers were wounded in a roadside blast.
The attacks came as the commander of US forces in Afghanistan met Afghan and Pakistani commanders for security talks including ways to combat a wave of bombings.
Jalalabad police spokesman Abdul Ghafour said US troops shot dead the suicide car-bomber as he tried to ram a convoy and seconds later his explosives detonated.
US military spokeswoman Lieutenant Tamara Lawrence said the driver was killed in a blast as he approached the US convoy.
A roadside blast hit a Canadian forces vehicle in the southern province of Helmand, wounding two soldiers. One of them men was slightly wounded and the other was under observation for a wound that was not life-threatening, said Canadian forces spokeswoman Captain Julie Roberge.