Security officials and tribal leaders say at least 12 people were killed in eastern Yemen when a suicide bomber rammed his vehicle into a crowd.
The explosion on May 25 killed supporters of Shi'ite rebels who gathered near a school in al-Hazm, the capital of al-Jawf Province.
Officials say the attacker was a suspected member of an Al-Qaeda-linked group, which views Shi'ites as renegade Muslims.
In a separate incident, witnesses said a suicide attacker blew himself up near a protest in northern Saada Province, killing only himself.
In a third attack, a senior official in southern Bayda Province was critically wounded when a roadside bomb exploded near his passing vehicle.
Based on reporting by AP and AFP