The arrestees were identified as Jannat Hossain and Abdur Rahim, hailed from Rangamati district.
Jafar Ahmed, a sub-inspector of Sadar Police Station, said police arrested the duo when they were fleeing the area after committing a robbery.
They are members of an organised robbery gang. Ornaments, a large amount of cash, a motorcycle, and some other items were recovered from their possession, he added.
Contacted, Sadar Police Station Officer-in Charge Jainal Abedin said the duo were shown arrest in a robbery.