A suicide car bomb attack on an army training camp in Yemen's second city of Aden killed at least 60 people on Monday.
The Islamic State has claimed responsibility for the attack.
A security official told AFP that the attacker drove his vehicle into a gathering of new recruits at the camp in northern Aden.
The assault killed 60 people and wounded 29 others, medical sources from the three hospitals where the victims were taken told AFP.
Security officials had provided an earlier toll of 11 dead.
The port city, the temporary base of Yemen's Gulf-backed government, has seen a wave of bombings and shootings targeting officials and security forces.
Attacks in Aden are often claimed by jihadists from either Al-Qaeda or the Islamic State group, which have both taken advantage of the chaos in Yemen to make gains in southern and southeastern regions.
Yemeni authorities have trained hundreds of soldiers in Aden over the past two months to as part of operations to retake neighbouring southern provinces from jihadists.
Earlier this month, Yemeni government forces backed by a Saudi-led coalition entered Abyan's provincial capital Zinjibar.
Troops retook other towns across Abyan but have been met by fierce resistance in key Al-Qaeda stronghold, Al-Mahfid, a town which lies further east, security sources said.
The militants are still present in areas surrounding the recaptured towns and control large parts of the neighbouring Shabwa province, the sources say.
The Arab coalition which backs the Yemeni government against Iran-backed rebels has also been providing troops with air cover throughout their war against the jihadists.
(Telegraph)