Iran-backed Houthi rebels hit the southern Mansoura district of the Yemeni city of Aden on Wednesday with rocket artillery, killing at least 15 civilians and wounding dozens of others, Al Jazeera has reported.
The attack came after ISIS killed at least 28 people on Monday in a car bombing attack which targeted Houthi leaders in Yemen’s capital Sanaa.
Two Houthi tribal chiefs were targeted during the car bombing attack, which ISIS said targeted a “Shia nest.”
Meanwhile, Al Qaeda raided a prison and nearly 1,200 prisoners escaped from the jail by taking advantage of the chaos.
"Heavy fighting took place near the central prison and the popular committees [militiamen] approached and seized control of the area, but Saleh's forces opened the prison doors," a security official said.
"More than 1,200 of the dangerous prisoners escaped,” he added.
According to a local official, Al Qaeda militants were among the escapees.
Hakim al-Masmari, editor of the Yemen Post, said that three major jailbreak incidents have occurred in Yemen since March when clashes started between exiled President Abd Rabbuh Mansur Hadi’s supporters and Iran-backed Houthi rebels.
Backed by Iran the Houthis took control of the Yemeni capital of Sanaa in September 2014 through an armed uprising, causing the Yemeni government to flee to Aden after the group attempted to disband it in January.
Iran and Saudi Arabia have been engaged in a proxy war over influence in the Middle East with both sides supporting rival forces in different conflicts, including in Syria and Yemen, mostly along sectarian lines.
More than 21 million people, or 80 percent of Yemen’s population, are now estimated to be in need of some form of humanitarian aid.
According to the UN, $1.6 billion is needed to help people in Yemen who have been devastated by the ongoing war in the country.