1987 Mecca incident

On 31 July 1987, during the Hajj (Arabic for pilgrimage) in Mecca, a clash between Shia pilgrim demonstrators and the Saudi Arabian security forces resulted in the death of more than 400 people. The event has been variously described as a "riot" or a "massacre". It developed from increasing tensions between Shia Iran and Sunni Saudi Arabia since the 1979 Iranian Revolution. Since 1981, Iranian pilgrims have held a political demonstration against Israel and the United States every year at Hajj, but in 1987, a cordon of Saudi police and the Saudi Arabian National Guard sealed part of the planned demonstration route, resulting in a confrontation between them and the pilgrims. This escalated into a violent clash, followed by a deadly stampede.

How many pilgrims died and how they died are both disputed. Both Iran and Saudi Arabia blame each other for the loss of life. Estimates of fatalities range from 400 with thousands more injured (Iranian government); 402, of which 275 were Iranian pilgrims, 85 Saudi police, and 42 pilgrims from other countries (Saudi government); and more than 400 dead (New York Times). Saudis claim the pilgrims were armed and died in a stampede. Iranians claim many were killed by Saudi gunfire.

After the incident, Iranians attacked the Saudi, Kuwaiti and French Embassies, abducting four Saudis from the embassy.