Afghan security force members inspect the site of a suicide attack in Kabul, Afghanistan, on Aug. 15, 2018. At least 48 people were confirmed dead and 67 injured in a suicide bombing that targeted a private educational center in Dasht-e-Barchi locality in Kabul, Afghanistan on Wednesday. (Xinhua/Rahmat Alizadah)

KABUL, Aug. 15 (Xinhua) -- Up to 48 students were killed and 67 others injured in a suicide bomb blast targeting a private educational center in Dasht-e-Barchi locality of Afghan capital Kabul on Wednesday, the Public Health Ministry said.

Many of the injured remained in critical condition. Earlier reports said that 25 people were killed and 36 others injured.

Most of the victims were high school graduates who attended lessons on preparation for university entry test. Among the victims were many female students.

The UN mission in the country condemned the attack, saying in a statement that "no justification whatsoever for targeting civilians, at any time, under any circumstances."

No group has claimed responsibility yet. However, people pointed finger at the hardliner Islamic State (IS) group, saying the extremist outfit could be behind the deadly attack as it did in the past.