The deadly stampede at the hajj in Saudi Arabia on Thursday is just the latest tragedy to strike the pilgrimage.
Here is a timeline of significant incidents during the annual event, which draws around two million Muslim faithful from around the world.
1994 – A stampede near the al-Jamarat site just outside Makkah, where pilgrims undertake the ritual of stoning the devil, killed 270 pilgrims.
1997 – A fire in the tent city of Mina tears through a sprawling, crowded district, trapping and killing more than 340 pilgrims and injuring 1,500.
1998 – 180 people were killed in a stampede, close to the al-Jamarat site.
2004 – A stampede at the same site killed 251 Muslim pilgrims and injured another 244
2005: Three pilgrims are crushed to death in a stampede at the stoning ceremony in Mina.
2006 – 364 pilgrims are killed in a stampede during the stoning ritual in Mina. The ritual involves hajj participants throwing pebbles at three headstones, symbolising their rejection of Satan.