At least six people were killed as Cyclone Bijli struck overnight, said a food and disaster management ministry official on Saturday.
At least 50 people were injured in the cyclone when trees and walls of their houses collapsed on them.
Among the injured, at least 20 women and children were taken to hospitals in Cox's Bazar.
600 houses and about 650 hectares of cropland were damaged by the tropical
storm that made landfall overnight on the southeastern coast.
A few thousand houses collapsed in Bandarban while trees and electric poles were toppled, snapping power supply from Friday evening.