DOHA (Al Jazeera): At least seven people have been killed after a car bomb went off outside the presidential palace in the southern Yemeni city of Aden, the local police chief says. Shalal Shaei told Al Jazeera that 15 people were also wounded in Thursday’s blast. The dead included soldiers, he said. An affiliate of the Islamic State of Iraq and the Levant (ISIL) group claimed responsibility for the attack. The explosion happened as a suicide car bomber rammed into cement blocks that protect the gate of the palace in the Masheeq area. President Abd-Rabbu Mansour Hadi recently returned to Aden from exile in Saudi Arabia. He fled the city last year as Houthi rebels and allied forces closed in on the city.