The authorities seized the Physics question paper of the SSC examinations from 50 examinees in front of Mahila Samity High School in Chittagong on Tuesday morning.
Executive magistrate Syed Murad Ali said a team detained the students of Chittagong Ideal School's Patia branch and recovered the same copy of the physics question paper in their mobile phones.
The examinees were however allowed to sit for the examination. Legal action will be taken against them after the examinations, said Syed Murad Ali.
Question paper of all the eight examinations held so far have been leaked this year, which is a record.
As many as 2,031,899 students are participating in the SSC examinations this year.
The government has taken different measures to stop the leak of question papers, but to no avail.