ABU DHABI - Bahrain police found a bomb planted on a causeway linking the island to Saudi Arabia, and four officers were shot and wounded late on Friday, officials said in the latest violence to rock the kingdom on the second anniversary of an uprising.

The 2 kg bomb, discovered near a mosque on the Bahraini side of the route used by thousands of people every day, was safely defused, said the Information Authority in the US-allied Gulf Arab state.

Four officers were hit by birdshot pellets in the Shi'ite Muslim village of Karzakan late on Friday, the authority added, quoting the island's chief of public security Major-General Tariq Hassan al-Hassan.

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