Bahrain police fired tear gas at several dozen people protesting the execution by Saudi Arabia Saturday of a prominent Saudi Shiite cleric, an eyewitness said. Demonstrators carrying pictures of the cleric, Nimr al-Nimr, faced security forces in a standoff in the Shi'ite Muslim village of Abu-Saiba, west of the capital Manama. Activists have called for protests in the Sunni-ruled island kingdom, a sign that Nimr's death may inflame already raging sectarian tensions in the Middle East.