The Saudi-led coalition launched a military intervention in Yemen in 2015 with the goal of rolling back the Houthis and restoring the internationally-recognized government to power.
Even the Al-Masirah TV system, run by the Shiite rebels referred to as Houthis who restrain Sanaa and much of Yemen's northwest, did not give a breakdown of the casualties after Monday's attack and it wasn't known should they comprised some other rebel leaders.
The presidential palace in Sanaa has been hit by Saudi-led airstrikes, causing victims, local residents reported Monday.
The inhabitants talked on condition of anonymity, fearing for their security.
Many were believed to have been buried under the rubble.
He said the rockets were launched from northern Yemen toward "populated areas" of Saudi Arabia, but were intercepted overnight without any casualties or damage.
The Saudi-led coalition was waging war from the Houthis as 2015.
The conflict has left almost 10,000 people killed, tens of thousands wounded, and millions on the brink of starvation in what the United Nations has called the world's worst humanitarian crisis. Al Sammad was also the acting president of the territory under rebel control while the Houthis' leader, Abdel Malek al Houthi, has mostly kept out of the public eye, addressing Yemenis only in occasional newscasts on rebel-run outlets.
The strikes came hours after Saudi Arabia's air defences intercepted two ballistic missiles launched by the Huthis that targeted the south of the kingdom, said coalition spokesman Colonel Turki al-Malki.
Witnesses described a scene of devastation. One resident says he saw a body fly over a shop and a auto washer killed by shrapnel.
The eyewitnesses spoke on condition of anonymity fearing reprisals.
Pictures on social networking show bloodied faces of those injured and columns of smoke climbing within Sanaa.