Two men allegedly raped a 15-year-old girl in Lucknow on Saturday night, The Times of India reported. The men fled after assaulting her.

When the girl tried to get help from a passerby, he allegedly sexually assaulted her, too.

The police have arrested the passerby and are looking for the other two men. In her complaint, she told the police she knew one of her attackers.

Circle Officer of Sarojini Nagar Lalta Prasad Singh told ANI that the girl had gone to buy groceries when the acquaintance asked her to come with him. He then took her to a secluded place where he and his friend raped her, Singh said.

The 15-year-old went home and told her family about the attack, after which a complaint was filed.