At least 16 people, including four Indian nurses, were killed when gunmen opened fire at an elderly care home in Yemen’s main southern city of Aden, security officials said.
Four gunmen stormed the home in Sheikh Othman District, killing a guard before tying up and shooting employees, officials said.
Dozens of stricken family members arrived at the site following the attack.
One official said the attackers were extremists and blamed the Islamic State group, which has been gaining ground in Aden in recent months.
The dead nurses were Indian nuns, the officials said, adding that the rest of those killed were Yemenis working at the home.
No group claimed responsibility for attack, the first of its kind in Yemen, where the government is grappling with an Iran-backed rebellion on one side and a jihadist presence on the other.