Police and medical officials, who spoke on condition of anonymity because they were not authorized to brief reporters, estimated that 50-75 people were trapped inside the Jawhara mall.

They said gunmen could be seen on the roof of the mall, which was surrounding by police and soldiers.

They said at least three police were among the dead.

No one immediately claimed responsibility for the attack, but the Islamic State group often targets the country's Shiite majority.

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