At least five people were killed Friday in a car bombing targeting a mosque in a mainly Shiite area north of the Iraqi capital Baghdad, said security officials, dpa reported.
The bombing occurred as worshippers were offering noon prayers in the mosque in the city of Kirkuk, some 250 north of Baghdad, they added. A further 60 people were injured.
Iraq has witnessed near-daily attacks since US troops withdrew in December 2011, raising fears of a return to the sectarian tensions that drove the country to the brink of civil war in 2006 and 2007.
The violence comes amid a widening crisis between the Shiite-led government and the country's once-dominant Sunni minority.
Thousands of Sunni protesters have been holding protests for nearly four months to demand that Shiite Prime Minister Nuri al-Maliki repeal laws they claim target Sunnis.