Diplomats reported on Tuesday that at least 550 pilgrims died during the Hajj, highlighting the grueling nature of the pilgrimage, which again unfolded in scorching temperatures this year. Among the deceased, at least 323 were Egyptians, with most succumbing to heat-related illnesses, according to two Arab diplomats coordinating their countries’ responses.

“All of the Egyptians died because of heat, except for one who sustained fatal injuries during a minor crowd crush,” one diplomat said...