Three people were killed and eight others injured in twin bomb explosions at a Shiite shrine in central Baghdad on Saturday, an Interior Ministry source said. Two explosive charges detonated at about 12:30 p.m. (0930 GMT), one inside the shrine Imam Othman Bin Sa'id al-Omary near Haraj market in Bab al-Mua'dham area, and another at a parking lot outside the shrine, the source told Xinhua on condition of anonymity. The toll could continue to rise, the source said, as the blasts were close to the crowded popular Haraj market on the eastern side of the Tigris River, which bisects the Iraqi capital. Iraqi security forces sealed off the area to secure the scene while ambulances and civilian cars rushed the casualties to the nearby medical complex, which includes major Baghdad hospitals and the Iraqi ministry of health. Earlier, the source said a car bomb went off at a parking lot in central Baghdad, putting the toll at one killed and four injured. Massive blasts rocked central the capital as large volume of black smoke could be seen rising above the area, Xinhua correspondent said. Sporadic attacks continue in Baghdad as part of recent deterioration in security which shaped a setback to the efforts of the Iraqi government to restore normalcy in the capital after more than two months of U.S. troops pullout of cities and towns. 