A cloth merchant and his two sons were shot dead allegedly by some unidentified assailants at their house in Ghaziabad early on Monday, police said.
The trader's wife, who also suffered gunshot injuries, is currently hospitalised, Ghaziabad Superintendent of Police Amit Pathak said.
"The incident took place around 3 am in Toli Mohalla in Loni police station area," the officer said, adding police teams, including forensic experts and dog squads, have been sent to the incident spot.
"No loot or robbery has been reported yet. We are looking into various angles in the case," Mr Pathak told PTI.
Those killed have been identified as merchant Raisuddin, his sons Azharuddin and Imran.
CCTV Footage Shows Man On Bicycle Before He Killed Bengal Schoolgirl Minor Kidnapped And Murdered In Bengal, BJP Claims She Was Raped Amethi Murders Could Be Result Of Relationship Gone Sour: Cops 3 Spectators At Air Force's Chennai Airshow Die "Sit Quiet": Bhavish Aggarwal As Kunal Kamra Flags Ola EV Issue Egypt's Pyramids Built Using An Incredibly Clever Machine: Study 2 Kg Human Hair Found In UP Woman's Stomach Watch: After Chess, Yogi Adityanath Plays Cricket In Lucknow 10 Doctors Close To Kolkata Hospital's Former Principal Expelled Track Latest News Live on NDTV.com and get news updates from India and around the world.