US forces and Iraqi police detained two leaders of Islamist cells linked to al-Qaeda terror chief in Iraq, Abu Musab al-Zarqawi, the US military said today. The arrests came in two restive cities of the Sunni Muslim insurgency, Mosul and Baquba. Yesterday, Iraqi police netted two Islamic extremists in Baquba, 60 kilometres north-east of Baghdad, the military said. Police captured Karem Abed Ibrahim, who has "ties to the Zarqawi network in Baghdad", said Colonel Dana Pittard, head of the 1st Infantry Division in Baquba. "It'll put a dent in the insurgency." Colonel Pittard also said US forces and police had...