Jakarta, May 22 -- Ninety-nine Indonesian Hajj pilgrims have contracted pneumonia while performing their pilgrimage in Saudi Arabia, and one person has died from an acute respiratory infection.

The announcement was made by Liliek Marhaendro Susilo, head of Indonesia's Hajj Health Center, in a statement released on Thursday.

"We must be cautious, as this condition can develop into a severe illness if not treated promptly and properly," Susilo said.

According to data from the Indonesian Hajj Health Clinics (KKHI) in Mecca and Medina as of May 20, the affected pilgrims are spread across various sectors and groups.

They are currently receiving intensive care at referral hospitals in the two holy cities.

Susilo explained that pneumonia ca...