PARIS - It is Islam's holiest pilgrimage, but the hajj to Mecca in Saudi Arabia, which begins on Wednesday, has in recent decades been plagued by deadly disasters, from stampedes to militant attacks.
Last year, 1,301 pilgrims, most of them unregistered and lacking access to air-conditioned tents and buses, died as temperatures soared to 51.8 degrees Celsius.
Here are some incidents that have marred the centuries-old pilgrimage:
Stampedes
The worst hajj disaster ever took place in 2015, when a stampede during the stoning of the devil ritual in Mina, near Mecca, killed up to 2,300 worshippers.
Some pilgrims blamed the stampede on the closure of a road near the stoning site, accusing security forces of mismanaging the flow of worshippers.
Two weeks before, more than 100 people were killed and hundreds injured when stormy weather toppled a crane onto Mecca's Grand Mosque.
Some 364 pilgrims died in a 2006 stampede, which came a week after a hotel collapse in the city centre killed 76 people.
Two years earlier, 251 people died in a stampede, and in 1998 more than 100 people were killed.
Authorities cited "record numbers" of pilgrims as the cause of a 1994 stampede that killed 270 people.
In 1990, 1,426 mostly Asian pilgrims perished, trampled underfoot and asphyxiated in a tunnel at Mina after a ventilation system failed.
According to the authorities, panic set in inside an already hugely overcrowded tunnel when seven pilgrims fell from a bridge.
Witnesses said a power outage paralysed the tunnel's two powerful ventilators.
A Muslim worshipper prays at the Grand Mosque complex in the holy city of Mecca on June 2, 2025 ahead of the annual Hajj pilgrimage. (Photo by AFP)