Iraqi police and health officials have raised the number of dead to 71 in the double suicide bombing at a revered Baghdad shrine, making it the single most deadly attack in Iraq in more than a year. The officials said Saturday that 71 people were killed a day earlier when two female suicide bombers struck worshippers on their way to the shrine of Imam Mousa al-Kazim. The police official says security around the shrine has been increased and additional checkpoints have been set up in the northern Baghdad neighborhood of Kazimiyah where the shrine is located, Associated Press reported.