Here's a look at some previous Hajj-related incidents:
2015 — At least 107 people were killed and scores wounded when a crane collapsed in bad weather, crashing onto the Grand Mosque in Mecca, Islam's holiest site.
2006 — More than 360 pilgrims were killed in a stampede at the desert plain of Mina, near Mecca, where pilgrims carry out a symbolic stoning of the devil by throwing pebbles against three stone walls. The day before the Hajj began, an eight-story building being used as a hostel near the Grand Mosque in Mecca collapsed, killing at least 73 people.
2004 — A crush of pilgrims at Mina killed 244 pilgrims and injured hundreds on the final day of the Hajj ceremonies.
2001 — A stampede at Mina during the final day of the pilgrimage ceremonies killed 35 Hajj pilgrims.
1998 — About 180 pilgrims were trampled to death in panic after several of them fell off an overpass during the final stoning ritual at Mina.
1997 — At least 340 pilgrims were killed in a fire at the tent city of Mina as the blaze was aided by high winds. More than 1,500 were injured.
1994 — Some 270 pilgrims were killed in a stampede during the stoning ritual at Mina.
1990 — The worst Hajj-related tragedy claimed the lives of 1,426 pilgrims in a stampede in an overcrowded pedestrian tunnel leading to holy sites in Mecca.
Al Jazeera and The Associated Press