A 15-year-old girl was allegedly raped by five people on multiple occasions over three months in Central Mumbai, police said on Monday.

The police arrested a 25-year-old man and detained four juveniles for the sexual assault in the Kalachowki area a few hours after the incident, an officer said, adding that the matter came to light in the early hours of Sunday when the girlfriend of one of the accused arrived at the teen's house and confronted her about being in a relationship with her boyfriend.

The school girl's parents then checked her mobile phone and found some videos and messages about her physical relationship with the accused, and subsequently approached the police, the officer added.