A shooting at a Shia mosque in eastern Saudi Arabia killed three people and wounded others during Friday prayers, reports said quoting officials.

The attack struck the Imam Reza Mosque in the neighborhood of Mehasin during prayers.

Images on social media showed wounded people laying on the mosque's floor.

Reports said the three deaths were an initial toll. They spoke on condition of anonymity as a formal announcement had yet to be made.

Reports said that security forces were exchanging gunfire with five terrorists.(Agencies)