Police understood to be investigating the alleged rape of a Kent schoolgirl say they have found no evidence of an assault having taken place.

Four boys were arrested earlier this month following reports of a sexual offence in Dover - believed to be at a school in the town.

It was reported by The Times that detectives were investigating allegations that a teenage boy had raped a 15-year-old girl, while three others held her down.

Protests were held at the school yesterday and today, and also outside Dover police station, by pupils raising concerns for their own safety in light of the alleged incident.

But today Kent Police says all four suspects - understood to be young asylum seekers - have been released without charge after a thorough investigation found no evidence an assault had taken place.

A spokesman said: "Four boys arrested following a report of a sexual offence in Dover have been released without charge.

"Kent Police carried out a full, thorough and sensitive investigation into the incident, which reportedly involved a teenage girl and a teenage boy on Monday, February 6.

"No evidence of a criminal offence having taken place has been established and no further action is to be taken, unless any relevant additional information is received.

"Officers will work with partner agencies to ensure all of those spoken to as part of the investigation get continued support."