Four people have been killed after a car bomb exploded in busy shopping district of central Baghdad.<br /><br /> Authorities say a number of people were injured in the blast.<br /><br /> The area is inhabited by both Sunni and Shi’ite Muslims and is close to the Ishtar Sheraton Hotel, a famous landmark in the city.<br /><br /> No group has claimed responsibility for the attack. <br /><br /> Bombs in Baghdad are a common occurrence as heightened sectarian violence erodes Iraq’s social fabric.
