Members of Rapid Action Battalion (RAB) on Sunday arrested five robbers in connection with the killing of two passengers during a robbery in a Jamalpur-bound commuter train.
The arrestees are Ashraful Islam Swadhin, 26, Maksudul Hauque Rishad, 28, Md Hasan, 22, Rubel Mia, 31, and Mohammad, 25.
Sharp weapons and mobile phone sets were seized from their possession during the arrest.
Earlier on Thursday night, two passengers were killed and another was injured after the gang of robbers stabbed them on the roof of the commuter train in Mymensingh's Gafargaon upazila.
The robbers had climbed on top of the train and started robbing passengers travelling on the roof. The trio came under attack when they tried to catch the robbers.
When the train reached Jamalpur station, police rushed the three severely injured passengers to Sadar Hospital. Two of them were, however, declared dead on arrival.
Among the accused, Rishad had served jail for two years under narcotics case.