Members of Forest Department detained 23 fishermen and seized 29 maunds of crab, a trawler and some crab-catching traps from Bogi area in East Sundarbans area of Sharankhola upazila here on Monday night.
Md Mahmudul Hasan, divisional forest officer (DFO) of the Sundarbans East Division, said members of Forest Department detained the fishermen from the area during regular patrol in the forest.
Twenty nine maunds of crab, a trawler and crab catching traps were recovered from their possession, Mahmudul said adding that they entered the Sundarbans illegally five days ago.
A case was filed against them on Tuesday morning and they will be produced before court.