The deceased were identified as Tushar, 40, and his brother Biplob, 32. They were the residents of Ichakhali area under Mirsharia Upazila of the district.
Eye witnesses said the accident occurred at around 12:30pm as the driver of the private car lost control over the steering. Tushar and Biplob died on the spot, said physician Siful Islam of Feni general hospital.
The injured were sent to Chattogram Medical College Hospital (CMCH) for treatment.