Three killed in bus attack

Gunmen opened fire on a bus carrying Shiite Muslim worshippers in the southern Pakistan port city of Karachi, killing at least three and wounding several others.

About 20 Shiite Muslims were on their way to a mosque for Friday prayers when the attack happened, said Athar Rashid Butt.

Nobody claimed responsibility, but suspicion fell immediately on one of several Sunni Muslim extremist groups which have killed hundreds of minority Shiite Muslims over recent years.