Four people including a liquor seller died on Monday night and early yesterday after drinking toxic alcohol in Mohasthangarh under Shibganj upazila of the district.
The deceased were identified as liquor seller Lokman, 48, Rois Uddin, 35, Azizur Rahman, 48, Shahjahan Ali, 50.
Arifur Rahman Mondol, assistant superintendent of police (A Circle) in Bogra, said Shahjahan and Azizur died immediately after taking the toxic liquor on Monday night.
Lokman died around 12:00 midnight while Rois Uddin in early hours yesterday at Shaheed Ziaur Rahman Medical College and Hospital.
However, police arrested Tuku Mia, 30, a drug peddler in the area yesterday afternoon on charge of selling liquor illegally.