A gunman opened fire in a mosque in a predominantly Shiite northern town Friday, killing at least eight worshippers and wounding dozens, a Yemeni security official said.
Police have detained the attacker, who witnesses said opened fire with an assault rifle during the weekly sermon.
The official spoke on condition of anonymity because he was not authorized to speak to the press.
The attack took place in the town of Kohal, in Amran, a predominantly Shiite province north of the capital San'a.
On May 2, a booby-trapped motorcycle exploded outside a Shiite mosque as worshippers were leaving, killing 18.