Washington, Jan 12: The US Defence Ministry is “extremely concerned” about al Qaeda operations in Pakistan’s tribal areas bordering Afghanistan, military chief Admiral Michael Mullen has said.

“We know it is having a significant impact, not just in Afghanistan, but certainly there are concerns about how much they have turned inward inside Pakistan. I am extremely concerned about this,” he told reporters.

Washington, Nov 21: Admiral Michael Mullen, the Chairman of the US Joint Chiefs of Staff, has said that the emergency in Pakistan will not affect military to military relations with the United States.

Admiral Mullen told reporters at the Washington Foreign Press Centre that from a military standpoint, he had not seen any effect of the emergency on bilateral relations.

"The military to military contact still continues, and I see no problem there," he said."