Police are investigating allegations a 14-year-old Asian pupil was racially abused outside school gates.

Mobile phone footage appears to show the chaotic aftermath of the incident outside Priestnall School in Heaton Mersey, Stockport, after lessons on Thursday.

The girl’s mother says her daughter has regularly been called ‘ISIS’ during an alleged three-year campaign of bullying at the school.

She has now withdrawn her daughter from the school. Both GMP and Stockport Council are investigating.

A group of pupils is said to have followed the girl as she got into her mother’s car and are alleged to have racially abused her through the rear windscreen.

The girl’s mother, Farrah Aftab, 37, from Heaton Chapel, told the M.E.N: “They were saying horrible things, calling her ISIS and saying they were going to break her nose and asking where she was at the time of the Manchester Arena bomb and ‘you are ugly’. It was disgusting.”

Farrah took video of the aftermath of the incident which sees scores of pupils watching on as tempers fray. Teachers are also seen on the footage. Farrah claims the staff “did nothing” to deal with the situation.

She said: “It was worse because it happened in front of the teachers and they did nothing about it. My daughter was crying, saying ‘this is what they do to me’.

"It was racism and disgusting. They are just trying to intimidate her. It’s shocking. I just feel let down. This kind of thing has been going on since she joined the school.”

The girl admitted the incident had left her ‘scared’.

A letter from headteacher John Cregg to the family said if they felt she was too upset to attend school the following day 'we would be happy to authorise this decision and provide academic work for her to complete at home'.

It added that if, however, the family did want her to attend school the 'best outcomes for her and other members of our community would be for her to be educated in our study centre where she could be supported directly by members of school staff'.

Farrah added: “The study centre is basically where children go if they have misbehaved. She’s a victim in all this and yet they are treating her like a perpetrator."

A spokesman for Greater Manchester Police confirmed officers were investigating a report of a racially aggravated threats and abuse outside the school.

It is also investigating allegations of abusive messages sent to the girl via Snapchat and also an allegation that the mother of one of the alleged bullies threatened Farrah after she went to visit her on Wednesday.

A Priestnall School spokesperson said: “Priestnall School are aware of an incident after school on Thursday 6th July 2017.

"The matter has been referred to the Greater Manchester Police and the Local Authority. As this is now an ongoing investigation, we cannot comment further. Priestnall is an inclusive school and takes all concerns shared by parents and carers very seriously.

"The school will work with the family and all parties concerned to address any issues bought to their attention.”