Criminals shot dead a Jubo League leader at Palehat Bazar in Sadar upazila of Laxmipur on Thursday night.
The deceased, Rabiul Islam, 29, son of late Jafar Ahmed, was the joint convenor of South Hamsadi union unit of Awami League's youth wing.
Police and locals said seven to eight unidentified men came to the bazar on a CNG-run auto-rickshaw around 10:30 pm and shot him in the head.
Rabiul, who was taking tea at a tea stall in the bazar, died instantly and the gang fled the spot.
Police sent the body to Laxmipur Sadar Hospital for an autopsy.
AKM Salauddin, the newly elected chairman of Laxmipur Sadar upazila and also the joint convener of district unit of Jubo League, said Rabiul was an active leader of the party.
But he could not ascertain the motive behind the killing.
Locals alleged that the murder followed a long-standing feud over illegal drug trading and establishing supremacy in the area.
Iqbal Hossain, officer-in-charge of Laxmipur Sadar Police Station, said a case was filed and they were trying to nab the criminals.