A case was filed yesterday in connection of the murder of youth Sabbir Ahmed, who was stabbed to death at the city's Madina Market area on Tuesday.
Victim's father Oliur Rahman filed the case with Kotwali Police Station accusing Raju, Sakin and Tajul and several unnamed youths, said Selim Miah, officer-in-charge of the police station.
On Tuesday night, police arrested the trio from different areas in the city, hours after Sabbir was killed. They were sent to Sylhet jail after being produced before a Sylhet court.
Sabbir was stabbed dead allegedly by his friends over an altercation, said police.