Three police personnel, including an officer, were killed in a terror blast in Daih area of Bahrain, while police were dispersing rioters, the Interior Ministry said.

Daih village is located west of the capital Manama.

It said on its Twitter account that a group of protesters had broken away from a mourning procession in the village of Daih and started blocking roads. The explosion took place as the policemen were trying to disperse the rioters, it added.

There was no immediate word on what had caused the blast.