Two sisters and their paternal aunt died after drinking alcohol at Hosendi area of Gozaria upazila in Munshiganj on Saturday morning.
The deceased were identified as Chameli, 30, her sister Chaina, 25 and their paternal aunt Josna, 42.
Mohammad Harun-or-Rashid, officer-in-charge of Gozaria Police Station, said city shipyard (City Group) workers Montu and his wife Chameli, her sister Chaina and aunt Josna drank alcohol during their family programme on Friday at 10:30 pm.
As they fell on sick, they were first admitted to local hospital at Jamadi area and later sent to Dhaka Medical College and Hospital (DMCH). Chameli and Chaina died on Saturday at 7am while their aunt Josna at 11am.
The bodies were kept at DMCH, the OC added.