Iraqi al Qaeda group says behind Baghdad bombings

Al Qaeda's affiliate in Iraq has claimed responsibility for a slew of bombings that killed at least 71 people in Baghdad last week, a group that monitors online communication among insurgents said on Tuesday.

A suicide car bomber and multiple roadside bombs hit Baghdad's mainly Shi'ite areas on Dec. 22 in the first attacks on the capital since U.S. troops withdrew from Iraq on Dec. 18. In a sign of growing tensions within the government itself, Shi'ite Prime Minister Nuri al-Maliki has ordered the arrest of Sunni Vice President Tareq al-Hashemi and asked parliament to fire Sunni Deputy Prime Minister Saleh al-Mutlaq.

The U.S.-based SITE Intelligence Group said the Islamic State of Iraq, an umbrella group for al Qaeda-linked insurgents, had claimed responsibility for the attacks in a statement posted on Islamist websites on Monday. ISI said it had carried out the attacks in support of Sunni prisoners.

"The operations were distributed between targeting security headquarters, military patrols...and eliminating the heads of unbelief from amongst the security, military and administration leaders of the Green Zone (Iraqi) government," it was quoted by SITE as saying.    

Al Qaeda in Iraq has been weakened by deaths of leaders but there are fears the group will try to regroup and strengthen its presence following the withdrawal of U.S. troops almost nine years after the invasion that toppled Saddam Hussein.