Excerpt:
Three men have been arrested on suspicion of false imprisonment and sexual assault following an incident within the grounds of an Islamic girls' school.
Police say they are investigating reports surrounding the welfare of a small group of teenage girls in the grounds of the Islamic School for Girls in Lancaster.
In a statement police said: "An investigation has been launched after a report was made to police involving concern for the welfare of a small group of teenage girls within the grounds of the Islamic School for Girls in Lancaster.