A mini riot between school children armed with baseball bats and planks of wood ended with allegations of heavy handed treatment from police officers.

Police were called to the Colonnades Leisure Park on Purley Way, on Monday, to reports of a fight involving up to 30 youths, some of whom were armed.

One schoolgirl was left with a black eye and swollen hands after allegedly being assaulted by police called to deal with the mass brawl.

The teenager was one of ten youths arrested at the scene, who have been bailed until next month.

The 15-year-old claims she was assaulted after being told by police to clear the area.

Her mother said: "The school were aware a gang from outside the area had come to the school as they contacted the police earlier in the day.

"Instead of finding out what happened they have just tarred everyone with the same brush and excluded them from school, they have exams but they have not mentioned homework.

"The police exercised their position of authority negatively, they showed no regard for the children. They just showed up and passed judgement."

Her mother added she will be making a complaint to the IPCC and police confirmed they had received two complaints regarding the incident.

A police spokeswoman said: "Initial reports suggested between 20 to 30 people were involved in the fight.

While officers dealt with those arrested, a large group of around 50 youths attended the scene and became hostile towards the officers.

"Extra resources were deployed and the youths were encouraged to leave the scene. During the incident four police officers received minor injuries.

"It is believed those involved with the initial disturbance were armed with weapons.

"A baseball bat and pieces of wood were recovered from the scene. Enquiries by Croydon police continue."