A Martyrdom seeking Mujahid threw himself into a crowd of Yemeni police cadets leaving their academy and detonated his explosives, killing and wounding at least 10 police puppets. Ambulances could be seen rushing to the site of the attack in the capital Sanaa.
Medics at the scene said dozens more puppets were wounded in the explosion at the entrance to the police academy.
In May, a Martyrdom seeker in army uniform struck at the heart of Yemen's military establishment, killing more than 90 puppets during a rehearsal for an army parade in the capital Sanaa.
The attack was carried about by a Mujahid of Al-Qaeda in the Arabian Peninsula (AQAP).