Police arrested four members of a robber gang at Defalura village in Rajnagor upazila of Moulvibazar early yesterday.
The arrestees are Shahjahan Ahmed, 20, Jasim Uddin, 35, Moniruzzaman Saikat, 22, in Moulvibazar and Munna Mia in Sunamganj district, police said.
The gang, comprising eight to ten people, committed robbery at a house in the village around 3:00am.
As the residents started screaming, villagers came rushing in, caught the four robbers, beat them severely and handed them over to police, locals said.
The arrestees have previous robbery cases, said Rajnagor Police Station OC Abul Hasim.