Security officials say suspected al-Qaida gunmen have killed four Republican Guard soldiers in the mountainous central province of Marib.
They said the gunmen ambushed the four soldiers early on Sunday while traveling in a vehicle to distribute food to fellow troops manning checkpoints. They said the assailants managed to flee. Al-Qaida militants have frequently attacked Yemeni soldiers in Marib province, an al-Qaida stronghold.
The officials spoke on condition of anonymity because they are not authorized to brief the media.
Al-Qaida's activity has grown in Yemen over the past year, with several foiled terror attacks in the United States and elsewhere traced back to operatives based there.