Four residential students of Purba Noagaon Haji Suruj Ali Hafizia Madrasah at Noagaon village in Habiganj sadar upazila reportedly went missing from the madrasah on Friday.The missing students are: Sohanur, Noyon, Rafid, and Imtia.The incident came to the notice of the authorities after the madrasah was opened on Saturday after weekend.Shahidul Islam, additional superintendent of Habiganj police confirmed the matter.