ISLAMABAD, Dec 3 (Reuters) - The chairman of the U.S. Joint Chiefs of Staff urged Pakistan on Wednesday to broaden its campaign against jihadi groups as part of a U.S. diplomatic efforts to defuse tensions between Pakistan and India after last week's militant attacks on Mumbai.

Admiral Mike Mullen flew in for talks with Pakistan's 8-month-old civilian government and military officials earlier on Wednesday, while U.S. Secretary of State Condoleezza Rice was in New Delhi to consult with the Indian government.

Mullen urged Pakistani officials to "investigate aggressively any and all possible ties to groups in Pakistan" and "take more, and more concerted, action against militant extremists elsewhere in the cuntry". (Reporting by Simon Cameron-Moore; Editing by Robert Birsel)

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