At least 10 passengers, including four of the same family, remained missing till the suspension of the rescue operation in the evening.
Police detained four people, including the driver and master of MV Farhan-6, Babu Lal Baidya, assistant director of the Bangladesh Inland Water Transport Authority in Narayanganj said.
Rashed Bin Khaled, duty officer of the Fire Service and Civil Defence control room, said the trawler with 60-70 passengers on board sank in the river after being hit by the Dhaka-bound vessel at 9:00am.
While many passengers managed to swim to safety, “at least 10 people are missing,” he said.
“Five divers from the local fire service conducted rescue operations till evening.”
Meanwhile, members of Bangladesh Coast Guard and River Police also joined the operation.