A teenage madrasa student went missing while swimming at Bholaganj, a tourist attraction in Companyganj famous for abundance of white stone, on Friday afternoon.
The student was identified as Hafizur Rahman, 17, son of Harunur Rashid of Kamrangir Char in Dhaka.
Quran Asrabad Madrasa teacher Markajul said Hafizur went missing around 4pm when 144 madrasa students were swimming at the tourist spot.
The boy could not be found despite hours of search.
Tajul Islam, officer-in-charge of Companyganj Police Station, said they too are looking for the missing boy.