Yemeni security officials say al-Qaida militants have captured a town south of the capital Sanaa as they fought fierce battles elsewhere against Shiite rebels known as Houthis.

The officials say al-Qaida's Sunni militants on Monday seized al-Adeen town 200 kilometers (125 miles) south of from Sanaa in Ibb province. They did not give details on the capture of al-Adeen, where al-Qaida militants last week stormed the local security headquarters and held it for hours before fleeing to the mountains.

The officials also said fighting between the Houthis and al-Qaida militants resumed Monday in the Raad area in Baydah province south of Sanaa. The battles left 13 Houthis and 15 militants killed.

The officials spoke on condition of anonymity because they were not authorized to speak to the media.