Yemeni President Abd-Rabb Mansour Hadi has instructed investigations into the "terrorist incident" that targeted a rally of Houthis at Tahrir Square in the Yemeni capital earlier today.
At least 47 protesters were killed and 150 others wounded in the bomb attack.
The Yemeni president also ordered investigations into another bloody attack that targeted an army checkpoint in Al-Abr District in Hadhramaut Governorate, and left 20 soldiers killed.
Military and security authorities have vowed to collar the perpetrators and to bring them to justice as soon as possible.