Hundreds have perished and thousands have suffered from heatstroke during the annual Muslim Hajj pilgrimage to Mecca, where temperatures soared to 49 degrees Celsius (120 degrees Fahrenheit).

According to CNN Indonesia, 165 Indonesians have died, with additional fatalities reported among 41 Jordanians, 35 Tunisians, and 11 Iranians, as confirmed by respective authorities. The Iranian Red Crescent disclosed that 26 Iranians are hospitalized due to heatstroke, while some fatalities were attributed to underlying health issues.

The death toll is expected to rise, with Saudi Arabia and Egypt yet to release official figures. The governments are primarily aware of registered pilgrims; concerns persist for unregistered pilgrims.

Saudi Arabia reported treating over 2,700 people for heatstroke, prompting distress among families seeking information on missing loved ones via social media.

Over 1.8 million participants are involved in this year’s Hajj, a major religious event per Saudi General Authority for Statistics.

The gathering, during a June Hajj season, witnesses high temperatures, unlike last year’s with over 200 deaths.

The Saudi military deployed 1,600 personnel and 30 rapid response teams with 5,000 health volunteers to aid pilgrims.