Stampedes and crowd control failures

Sometimes, the growing crowd, trekking from one station of the pilgrimage to the next, cause a stampede. It spreads panic, pilgrims push themselves to avoid being trampled, and hundreds of dead can result. The stoning of the Devil's ceremony is very busy and dangerous 

July 2, 1990: A stampede in a pedestrian tunnel (Al-Ma'aisim tunnel) that leads from Mecca towards Mina, Saudi Arabia and the plains of Arafat led to the death of 1,426 pilgrims.

May 23, 1994: A stampede killed at least 270 pilgrims in the stoning of the ritual devil.

April 9, 1998: at least 118 pilgrims were killed and 180 injured in an incident on the Jamarat bridge.

March 5, 2001: Thirty-five pilgrims were trampled to death in a stampede during the stoning of the ritual devil.

February 11, 2003: The stoning of the Devil's rituals claimed the lives of 14 pilgrims. "

February 1, 2004: 251 pilgrims died and another was injured 244 in a stampede during the ritual of stoning in Mina.

Wikinews has related news: Hundreds of dead in stampede in Hajj

January 12, 2006: A stampede during the ritual al-Jamarat ramy on the last day of Hajj in Mina left at least 346 pilgrims and wounded 289 more. The incident occurred shortly after 1:00 pm local time, when a bus full of travelers arrived together at the eastern access ramps of the Jamarat Bridge. This caused the pilgrims to travel, quickly resulting in a lethal crush. It is estimated that two million people were performing the ritual of the time.

Fires

December 1975: A gas cylinder from the explosion caused a fire in a tent colony and resulted in the death of 200 pilgrims [6].

April 15, 1997: 343 pilgrims died and 1,500 injured in a fire at the MINA store, on 8 zillhijja between 10 a.m. to 12 p.m.

The stores are fireproof. (List may be incomplete).