Houses of worship around the world, a place of reflection and peace, have been targeted for attack by extremists. Here are some of the deadly assaults over the last decade:
July 16, 2010: Jundallah group kills 27 and injures 270 after it carries out a double suicide bombing against another Shiite mosque in southeastern Iran.
October 31, 2010: Al-Qaida in Iraq militants attack Our Lady of Salvation Catholic Church in Baghdad during Sunday night mass, killing 58 people in the deadliest assault targeting Christians since the 2003 US-led invasion there. Al-Qaida in Iraq later became the Islamic State group.
December 15, 2010: Two suicide bombers from the Sunni extremist group Jundallah blow themselves up near a mosque in southeastern Iran, including six Revolutionary Guard commanders.
August 5, 2012: Six members of the Sikh Temple of Wisconsin, in Oak Creek, are fatally shot by a white supremacist, Wade Michael Page. Page was shot by a responding officer and later killed himself.
November 18, 2014: Two Palestinians using axes, knives and a gun kill four Jewish worshippers and an Israeli police officer in an attack on a Jerusalem synagogue.
January 30, 2015: Suicide bombing at a Shiite mosque in the Pakistani town of Shikarpur kills 71. Jundullah claims responsibility.
March 20, 2015: Islamic State suicide bombers attack a pair of mosques in Yemen’s capital, unleashing monstrous blasts that ripped through worshippers and killed 137 people.
June 17, 2015: Nine black worshippers including a pastor are killed by Dylann Roof, a 21-year-old white supremacist, after he prayed with them in Charleston, South Carolina. Roof was convicted of federal hate-crime and obstruction-of-religion charges and sentenced to death.
September 24, 2015: A suicide bomber strikes a mosque in Yemen’s rebel-held capital, killing 25 worshippers during prayers for the Muslim holiday of Eid al-Adha.
November 12, 2016: Suicide bomber from Islamic State group kills over 50 at the shrine of Shah Noorani, in Pakistan’s Baluchistan province.
December 11, 2016: Suicide bomber strikes inside a Cairo chapel adjacent to St. Mark’s Cathedral, seat of Egypt’s ancient Coptic Orthodox Church. The Islamic State group claimed the attack, which killed at least 25 people.
January 29, 2017: A gunman killed six men during evening prayers at the Islamic Cultural Centre in Quebec City. Alexandre Bissonnette pleaded guilty to first-degree murder and attempted murder charges and was sentenced to serve 40 years in prison before being eligible for parole.
February 16, 2017: Suicide bomber detonates his explosives vest among the devotees at the shrine of Lal Shahbaz Qalandar in Pakistan’s Sindh province, killing 98.
April 9, 2017: Twin suicide bombings rock churches in the Egyptian coastal city of Alexandria and Tanta, killing at least 45 people. The attack was claimed by the Islamic State group.