Iraq Shi'ite Muslim men bleed as they gash their foreheads with swords and beat themselves while commemorating Ashura in Baghdad, Iraq ,October 12, 2016. (Photo by Ahmed Saad/Reuters)





Iraq Shi'ite Muslim men bleed as they gash their foreheads with swords and beat themselves while commemorating Ashura in Baghdad, Iraq ,October 12, 2016. (Photo by Ahmed Saad/Reuters)





Iraq Shi'ite Muslim men bleed as they gash their foreheads with swords and beat themselves while commemorating Ashura in Baghdad, Iraq ,October 12, 2016. (Photo by Ahmed Saad/Reuters)





Iraq Shi'ite Muslim men bleed as they gash their foreheads with swords and beat themselves while commemorating Ashura in Baghdad, Iraq ,October 12, 2016. (Photo by Ahmed Saad/Reuters)





Iraq Shi'ite Muslim men bleed as they gash their foreheads with swords and beat themselves while commemorating Ashura in Baghdad, Iraq ,October 12, 2016. (Photo by Ahmed Saad/Reuters)





Iraq Shi'ite Muslim men bleed as they gash their foreheads with swords and beat themselves while commemorating Ashura in Baghdad, Iraq ,October 12, 2016. (Photo by Ahmed Saad/Reuters)





Iraq Shi'ite Muslim men bleed as they gash their foreheads with swords and beat themselves while commemorating Ashura in Baghdad, Iraq ,October 12, 2016. (Photo by Ahmed Saad/Reuters)





Shi'ite Muslim mourners flagellate themselves during a Muharram procession to mark Ashura in Kolkata, India October 12, 2016. (Photo by Rupak De Chowdhuri/Reuters)





Shi'ite Muslim mourners flagellate themselves during a Muharram procession to mark Ashura in Kolkata, India October 12, 2016. (Photo by Rupak De Chowdhuri/Reuters)





Shi'ite Muslim mourners beat their chests during a Muharram procession to mark Ashura in Kolkata, India October 12, 2016. (Photo by Rupak De Chowdhuri/Reuters)





A Kashmiri Shi'ite Muslim mourner flagellates himself during a Muharram procession to mark Ashura in Srinagar, India October 12, 2016. (Photo by Danish Ismail/Reuters)





A Kashmiri Shi'ite Muslim bleeds after he flagellated himself during a Muharram procession to mark Ashura in Srinagar, India October 12, 2016. (Photo by Danish Ismail/Reuters)





A Shi'ite Muslim mourner flagellates himself during a Muharram procession to mark Ashura in Bengaluru, India October 12, 2016. (Photo by Abhishek N. Chinnappa/Reuters)





Shi'ite Muslim men gash their foreheads with swords during a religious procession to mark Ashura in Nabatiyeh, southern Lebanon October 12, 2016. (Photo by Ali Hashisho/Reuters)





A Shi'ite Muslim attempts to tap the head of a woman with a razor to draw blood during a religious procession to mark Ashura in Nabatiyeh town, southern Lebanon, October 12, 2016. (Photo by Ali Hashisho/Reuters)





A Shi'ite Muslim boy bleeds after tapping his forehead with a razor during a religious procession to mark Ashura in Nabatiyeh town, southern Lebanon October 12, 2016. (Photo by Ali Hashisho/Reuters)





A medic stands near a Shi'ite Muslim boy with his face covered in blood after he was cut on the forehead with a razor during a religious procession to mark Ashura in Nabatiyeh town, southern Lebanon, October 12, 2016. (Photo by Ali Hashisho/Reuters)





A shi'ite Muslim man wears an amulet and pendants as he takes part in a religious procession to mark Ashura in Karachi, Pakistan, October 12, 2016. (Photo by Akhtar Soomro/Reuters)





A paramedic attends to a Pakistani Shi'ite Muslim boy after he flagellated himself during a religious procession to mark Ashura in Rawalpindi, Pakistan, October 12, 2016. (Photo by Faisal Mahmood/Reuters)





A Shi'ite muslim mourner is sprayed with rose water after he flagellated himself during a Muharram procession to mark Ashura in Mumbai, India, October 12, 2016. (Photo by Shailesh Andrade/Reuters)





A Shi'ite Muslim man rests after gashing his forehead with a razor during a religious procession to mark Ashura in Nabatiyeh, southern Lebanon October 12, 2016. The tattoo reads in Arabic calligraphy “Ali, Fatima Zahra”. (Photo by Ali Hashisho/Reuters)





A Shi'ite Muslim man's back bleeds over his tattoo after he gashed his back with razors during a religious procession to mark Ashura in Nabatiyeh, southern Lebanon October 12, 2016. (Photo by Ali Hashisho/Reuters)





A Shi'ite Muslim man shows off his tattoos after he gashed his forehead with a razor during a religious procession to mark Ashura in Nabatiyeh, southern Lebanon October 12, 2016. His tattoo reads in Arabic calligraphy “Oh Ali (R) and oh Zainab (L)”. (Photo by Ali Hashisho/Reuters)





An Iraqi Shiite Muslim man is seen after flagellating himself in commemorations on the tenth day of the mourning period of Muharram, which marks the day of Ashura, in the holy city of Najaf on October 12, 2016. (Photo by Haidar Hamdani/AFP Photo)





A Pakistani Shiite Muslim boy flagellates himself with knives attached to chains a procession to mark Ashoura in Karachi, Pakistan, Wednesday, October 12, 2016. Shiites mark Ashoura, the tenth day of the month of Muharram, to commemorate the martyrdom of Imam Hussein, the grandson of the Prophet Muhammad, at the Battle of Karbala in present-day Iraq in the 7th century. (Photo by Shakil Adil/AP Photo)





Iraqi Shiite Muslim men are seen after flagellating themselves on the tenth day of the mourning period of Muharram, which marks the day of Ashura, in the holy city of Najaf on October 12, 2016. Ashura mourns the death of Imam Hussein, a grandson of the Prophet Mohammed, who was killed by armies of the Yazid near Karbala in 680 AD. (Photo by Haidar Hamdani/AFP Photo)





Iraqi Shiite Muslim boy is seen before being cut on the head, in ritual commemorating the death of Imam Hussein,Prophet Mohammed's grandson on the tenth day of the mourning period of Muharram, which marks the day of Ashura, in the holy city of Najaf on October 12, 2016. (Photo by Haidar Hamdani/AFP Photo)





Lebanese Shiite Muslims take part in a flagellation ceremony marking Ashura in the southern Lebanese city of Nabatieh on October 12, 2016. (Photo by Mohammed Sawaf/AFP Photo)





Indian Shia Muslim men flagellate themselves during the mourning procession on the tenth day of Muharram, which marks the day of Ashura, in Chennai on October 12, 2016. (Photo by Arun Sankar/AFP Photo)





A Lebanese Shiite Muslim child has blood running down his face during a flagellation ceremony marking Ashura in the southern Lebanese city of Nabatieh on October 12, 2016. (Photo by Mohammed Sawaf/AFP Photo)





A Kashmiri Shi'ite Muslim mourner flagellates himself during a Muharram procession to mark Ashura in Srinagar, India October 12, 2016. (Photo by Danish Ismail/Reuters)





A Shi'ite Muslim child reacts as he bleeds after he was cut on the forehead with a razor during a religious procession to mark Ashura in Nabatiyeh town, southern LebanonOctober 12, 2016. (Photo by Ali Hashisho/Reuters)





To commemorate the martyrdom of Hazrat Imam Hussain, mourners took out mourning procession, Ashura, on October 12, 2016 in Dhaka, Bangladesh. For Shi'a Muslims, Ashura marks the climax of the Remembrance of Muharram and commemorates the death of Husayn ibn Ali, the grandson of Muhammad at the Battle of Karbala. In Sunni Islam, Ashura marks the day that Moses and his followers (The children of Israel) were saved from Pharaoh by God by creating a path in the Red Sea. (Photo by Azam Husain/Barcroft Images)





An Indian Shia Muslim boy is flagellated during the mourning procession on the tenth day of Muharram, which marks the day of Ashura, in Chennai on October 12, 2016. (Photo by Arun Sankar/AFP Photo)