Dhaka, April 9 -- A woman has been raped and killed and her maternal grandparents have been seriously injured during an attack in Chattogram.

The incident occurred in the Dakshin Gachh Baria Nayapara area on Chandnaish Upazila on Wednesday morning.

The woman was identified as 18-year-old Arzu Akter, the daughter of Anwar Hossain from Chandnaish's Kanchannagar.

Arzu went to visit her maternal grandparents, said Chattogram Additional Superintendent of Police Md Rasel. Nazim, a young man Arzu referred to as "uncle", raped her when she went to the washroom at night.

When Anzu's grandparents attempted to block him, Nazim slit their throats and fled the scene, leaving them injured.

Police recovered the body from the washroom and sent her g...