Police arrested three alleged robbers along with arms at Banglabazar in Raipur upazila on Saturday night.
The arrestees were identified as Rajon, 30, son of Sayed Ahmed, Arif,28, son of Mohammad Ali and Foyez, 30, of the village.
Acting on a tip-off, a team of Raipur police raided the area and arrested them while they were taking preparation to commit a robbery.
Later, following their confessional statement police recovered two LG guns, eight bullets and a sharp weapon from a nearby pond.
The robbers looted valuables from the house of Lalgazi Patwari at North Keroa village in the same upazila on October 3.
SI Zakir Hossain filed a case against the trio under Arms and Explosives Act.