Assailants shot dead a senior Yemeni intelligence officer in Marib city east of the capital Sanaa on Friday, a security source said.
Commander Jarallah Salhi was gunned down in the centre of Marib.
The officer had actively taken part in the battle for Marib dam, southeast of the city backed by a Saudi-led coalition.
Yemen has been since March 26 under brutal aggression by Saudi-led coalition.
Thousands have been martyred and injured in the attack, with the vast majority of them are civilians.
Riyadh launched the attack on Yemen in a bid to restore power to fugitive president Abd Rabbu Mansour Hadi who is a close ally to Saudi Arabia.
However, Yemeni army, backed by the committees has been engaged in battles with Saudi-led mercenaries and Hadi’s militias in several areas across the country.