A bomb in a busy commercial area of central Baghdad killed five people Sunday, as lawmakers' wrangling over a draft bill that Sunni Arab groups fear will break up the country led to parliament suspending its debate before it could even begin. The roadside bomb detonated near a mobile phone shop near Tahrir Square, a popular commercial area with shops specializing in electronic goods, photographers' equipment and mobile telephones. At least five people were killed and another 17 were wounded, police Lt. Ali Metaab said. Less than an hour later, a parked car bomb exploded behind a police station in the al-Alwiya district, killing a police officer and wounding five police commandos and two civilians, police Lt. Col. Mohammed Abbas Salman said.