Police had to break up a Halloween house party attended by more than 100 Jewish teenagers after a fight broke out.

Police officers were called to the house at 10pm, and later confirmed that a teenage boy was taken to hospital with facial injuries.

Another teenager, a girl, was arrested by officers for drunk and disorderly.

Most of the teenagers in attendance are believed to have been 15 years old, while bouncers and security staff were believed to have been hired for the night.

A mother of one of the attendees, who declined to be named, told the JC that a number of children sustained “cuts and bruises”.

The party took place in the garden of a house on Uphill Road in Mill Hill, North West London, where homes are valued at millions of pounds.

It is thought to have been attended by pupils of JFS and JCoSS.

Patrick Moriarty, the JCoSS headteacher, said: “We are aware that a very small number of JCoSS students attended this party.

“We have spoken to those concerned, as well as their parents to ensure their wellbeing, which is our prime concern.”

JFS declined to comment.

University College School said it had not been contacted by the police and was not aware of the incident, contrary to reports that a number of its pupils had instigated the brawl.