Reports from Yemen say a pair of deadly suicide bombers in the southern port city of Aden has killed at least 40 people.
Security officials said on May 23 that a suicide car bomb targeted young men queueing up to enlist in the Yemeni army. Another blast shortly afterward hit a nearby army base.
The Islamic State (IS) extremist group claimed responsibility for the attacks.
Al-Qaeda and IS have claimed responsibility for a spate of attacks on government forces who drove Shi'ite Huthi rebels out of Aden in July 2015 with support from a Saudi-led coalition.
Aden is serving as the temporary home of Yemen's government while it seeks to regain control of the capital, Sanaa, from Shi'ite Huthi rebels.