New Delhi:  Two girls, including a minor, have been allegedly gang-raped by five teenagers in front of their male friends in outer Delhi's Aman Vihar area, police said on Thursday.

The incident took place around 8.30 PM near Mundka metro station when the girls and their male friends were out on a walk, a senior police officer said.

The accused spotted one of the girls in compromising position with her male friend following which they beat them up and held hostage, the officer said.

Then they took turns to rape the two girls, aged 18 and 17 years, in the isolated area near Mundka metro station, the officer said.

They threatened the victims of dire consequences if they reported the matter to police, the officer said.

A medical examination of the girls confirmed rape and a case under sections 323 (punishment for voluntarily causing hurt), 376 (punishment for rape) IPC and relevant sections of Protection of Children from Sexual Offences Act (POCSO) has been registered, the officer said.

Four of the five accused have been detained and police are trying to determine whether they are minors, the officer added.