Three people drowned and two others were injured as a trawler carrying around 50 Muslim devotees sank in the Gardair haor in Ajmiriganj upazila on Thursday afternoon.
The deceased were identified as Idris Miah, 55, of Birat village, Amina Begum, 30, and one-and-half-year-old boy Jihad of Nayagarh village in the upazila.
Police and locals said the trawler with the Muslim devotees capsized in the haor around 5:30pm after it was hit with an unknown hard objective under the water.
All the passengers except Idris, Amina and Jihad managed to swim ashore. Two of them suffered injuries.
Later, their bodies were recovered from the water.
The tragedy struck the Muslim devotees while they were going to Maniker dargah at Khagra village in Mithamain upazila of Kishoreganj from Biratghat in Ajmiriganj.