Nine people were also wounded in the yesterday's shooting, the latest in a spate of sporadic unrest in the oil-rich east of the Sunni-dominated kingdom where most its two million Shiites live.
The three assailants fired machine guns and pistols on a crowd leaving a building in the village of Al-Dalwa in the Al-Ihsa district of Eastern Province, a police spokesman cited by the official SPA news agency said.
The spokesman did not specify what the building was or what motive the gunmen might have had.