Warangal: A 20-year-old girl was allegedly gangraped on the outskirts of the city by four persons in front of her boyfriend, police said on Saturday.

The incident occurred on Friday night when the victim, a college student who hails from Enumamula village, was returning from Balaji Nagar area of Enumamula agricultural market along with her boyfriend, they said.

Police said the accused persons waylaid the duo and thrashed the boy before taking turns to sexually assault her.

A complaint was lodged in Intezargunj police station in this regard on Saturday, police said.

Four suspects have been detained and police are interrogating them.