In this image posted on the official Twitter account of the directorate of the Saudi Civil Defense agency, a pilgrim is treated by a medic after a stampede that killed and injured pilgrims in the holy city of Mina during the annual hajj pilgrimage on Thursday, Sept. 24, 2015.

Saudi Arabia’s civil defense says that at least 150 pilgrims have died while 400 others were injured when a stampede broke out in the tent city of Mina, reported Al Arabiya News.

Rescue operations are currently under way, the service said on Twitter, after the stampede in Mina near Mecca, where hundreds of thousands of pilgrims were taking part in the ‘stoning of the devil’, last major rite of the Hajj pilgrimage.

The civil defense team also said that their teams on the ground are leading pilgrims to safer routes away from the stampede through alternate routes and that rescue operations are still underway.

Footage from the scene show people lying on the floor while emergency crews tend to the injured. Images shared on Twitter also show neighboring hospitals in the area getting ready.

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