A bomb attack at a mosque at the capital of Yemen on Thursday killed at least 25 Shiite worshippers and dozens more during prayers for the Eid al-Adha Muslim holiday. The blast at the Balili mosque where Huthi Shiite rebels who control Sanaa pray took place after a suicide bomber detonated an explosives belt at the entrance.

No organization has claimed responsibility as yet, but the region has been shaken by a number of bombings by the Islamic State jihadist group in recent months targeting Shiites, that it believes are heretics.

The UN says that, since March 26, almost 4,900 people, including more than 2,200 civilians, have been killed as a result of fighing and air strikes in Yemen.