The bombings occurred in the lead-up to the parliamentary elections scheduled for 7 March 2010.[5] [6] At 9:45 am local time, a car bomb was detonated near a police station in the western part of the city. A few moments later, approximately 100 yards (91 m) away,[1] another car bomb was detonated near the provincial building.[7] A suicide bomber later detonated a bomb at the hospital where some of the wounded were being treated.[8] The hospital bomber posed as a police lieutenant and rode an ambulance to the hospital.[1][9] A fourth bomb was found near the hospital and defused.[10]