"Suspected Al-Qaeda gunmen riding in a vehicle shot dead Mohammed Abbad, a member of the Popular Resistance Committees in the town of Mudia" in the southern Abyan province, the official said.
The attack took place late yesterday near and the assailants "fled to an unknown location," the official added.
The Yemeni army launched a month-long offensive in May last year against Al-Qaeda militants in the southern Abyan province with the help of local tribesmen and residents.
The network has been weakened but still carries out hit-and-run attacks against army and police targets and occasionally assassinates members and leaders of the Popular Resistance Committees.