Bahraini Shiite Muslims women attend the Arbaeen religious festival in the village of Sanabis, west of Manama, on January 3, 2013, to mark the 40th day after Ashura, commemorating the seventh century killing of Prophet Mohammed's grandson, Imam Hussein. AFP PHOTO/MOHAMMED AL-SHAIKH
Iraqi Shiite Muslim pilgrims take part in friday prayers at the shrine of Imam Abbas in Karbala, 50 miles (80 kilometers) south of Baghdad on December 12, 2014, ahead of the Arbaeen religious festival which marks the 40th day after Ashura commemorating the seventh century killing of Prophet Mohammed's grandson, Imam Hussein. AFP PHOTO/MOHAMMED SAWAF
Credit: MOHAMMED SAWAF
Shi'ite people gather at Imam Hussein shrine during the Arba'een ceremony in the holy city of Karbala, southern Iraq on December 12, 2014. Hundreds of Shiite worshippers attend religious festival ceremonies in Karbala on the anniversary of the 40th day after the martyrdom of Imam Hussein, grandson of Prophet Mohammad who was killed in the Battle of Karbala in 681AD.
Credit: Anadolu Agency
A Muslim Shiite pilgrim carries a religious flag displaying Imam Hussein in Baghdad, on December 8, 2014, as they walk to Karbala for the Arbaeen religious festival. Arbaeen marks the 40th day after Ashura which commemorates the seventh century killing of Prophet Mohammed's grandson, Imam Hussein. AFP PHOTO / AHMAD AL-RUBAYE