A young man hacked his mother and son to death at Dastanabad village in Sadar upazila of Natore on Sunday night over a family feud.
The deceased were identified as Bilkis Begum, 55, wife of Shahadat Hossain, 65, and Alif Hossain, 13, son of Shah Alam of the village.
Locals said Alam, 35, chopped his father Shahadat, mother Bilkis and son Alif around 7:45pm, leaving the latter duo dead on the spot and the former injured.
Shahadat was taken to hospital.
Meanwhile, locals caught Alam after a hot chase while fleeing and handed him over to police, said Additional Police Super (Sadar circle) Abul Hasnat.
Quoting locals, he said Alam had been pressurising his father for the last few days for transferring the property against his name.