Yemeni security officials say gunmen have attacked a bus carrying nurses from a military hospital in the southern city of Aden, killing eight people, including two women, and wounding around a dozen others, AP reported.
The attack on Sunday saw militants open fire with Kalashnikov assault rifles, according to three security officials, who spoke on condition of anonymity because they were not authorized to speak to the media.
The security officials say they suspect Al-Qaeda's powerful local affiliate was behind the attack.
Al-Qaeda in the Arabian Peninsula regularly targets Yemeni security forces, and has been linked to a number of failed attacks on the United States.