
The incident took place at Bason-Bhanga Char in the afternoon.
Sources said 60 people of Gozaria Friends Club of Lalmohan upazila were heading towards Monpura for Picnic with the trawler.
As soon as the the trawler reached Bason-Bhanga Char area, it sank into the river after being hit with Sunken-Shoal.
However, local people and travellers from other vessels rescued all the 50 passengers of the sunken trawler, said Kamruzzaman, Upazila Nirbahi Officer of Tajumuddin upazila.
NS