A 58-year-old woman and her three-year-old grandson were killed after a truck hit their bike near a village, police said Monday.
Her husband was seriously injured in the accident that occurred on the Jansath-Muzaffarnagar road Sunday evening.
The victims were going to attend a wedding when the incident took place, Station House Officer Sarvesh Kumar said.
The woman and her grandson have been identified as Faizunisha and Zuber.
Police have registered a case against the truck driver and arrested him.