Politics

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A relative and senior aide of radical Shiite cleric Muqtada al-Sadr was killed Friday in the holy city of Najaf. The assassination threatens to raise tensions amid a violent standoff between al-Sadr's Mahdi Army and the U.S.-backed Iraqi government.

Zimbabwe President Robert Mugabe and opposition presidential candidate Morgan Tsvangirai will meet with leaders of southern African nations this weekend in an emergency summit to discuss the deepening political standoff in the country.