A truck bomb packed with explosives hidden under appliances struck a Shiite mosque Tuesday in central Baghdad, killing at least 78 people.
The thunderous explosion at the Khillani mosque in the capital's commercial area of Sinak sent smoke billowing over concrete buildings.
Gunfire erupted shortly after the blast, which a police officer said went off near the Khillani mosque in the commercial area of Sinak.
A police officer, who spoke on condition of anonymity because of security concerns, said the car that exploded was parked in a lot near the mosque and it damaged the outer wall of the building.
One officer said the explosives-packed truck was loaded with fans and air coolers to avoid arousing the suspicions of security forces guarding the surrounding area, which is full of shops selling electrical appliances.
Police and hospital officials said at least 78 people were killed and 218 were wounded, adding that the toll could rise as bodies were pulled from the debris.
The injured were taken to nearby Imam Ali bin Abi Talib Hospital in Sadr City.
On Sunday, officials lifted a curfew aimed at preventing retaliatory violence after last week's bombing of a Shiite mosque in Samarra.