Early on Thursday, at least 25 people, mostly students, were killed after a blaze broke out at the school in Kuala Lumpur.
The fire at Darul Quran Ittifaqiyah - a "tahfiz” boarding school where students learn to memorize the Quran - was reported at 5:40am local time, according to a statement from the Malaysian Fire and Rescue Department.
Khirudin Drahman, director of Kuala Lumpur's fire and rescue department, said the number of confirmed dead are 23 students and two teachers.
Seven people were taken to a nearby hospital for injuries, while 11 others were rescued.
Iranian Foreign Ministry Spokesman Bahram Qassemi expressed sympathies with Malaysia’s people and government and families of the victims over the tragic event, according to the Foreign Ministry website.
Tahfiz schools in Malaysia usually teach students between the ages of five and 18.
There were 519 tahfiz schools registered across the country as of April, but many more are believed to be unregistered.