Virudhunagar A 13-year-old mentally challenged girl was allegedly kidnapped and gang-raped by four youths near here, following which they have been arrested.

According to police, the girl, a seventh standard student, was alone at home when the youths abducted her to a nearby forest and gang-raped her yesterday.

Following a complaint by the girl’s mother, the four youths were arrested, police said, adding, they are on the lookout for another accused who is absconding.