Security officials in Yemen's capital Sanaa say 25 people were killed in a suicide bombing at a mosque during Eid al-Adha prayers.

The officials, who remain neutral in the conflict that has splintered the country, say dozens are wounded in the blast Thursday.

They say the suicide bomber placed an explosive device in his shoe, causing an initial explosion. As worshippers rushed to the door, he detonated himself in the middle of the crowd.

Eid al-Adha is a major Muslim holiday also known as the feast of sacrifice.