A seventh arrest has been made as part of the investigation into an incident at Runshaw College.

A 17-year-old boy from Preston was detained on Thursday morning on suspicion of a public order offence.

He has since been bailed pending further enquiries, with strict bail conditions, until Thursday April 4.

The incident took place shortly before 4pm on Monday when a group of young men arrived at the Leyland college to confront a rival group in relation to a prearranged fight.

Around 12 people arrived in a Volkswagen Polo, a Vauxhall Astra and a Nissan Micra. They then walked towards the Worden Park side of the Leyland Runshaw College campus shouting at and confronting students.

Some of the group had knives.

A 17-year-old boy received a cut to his arm during the fracas and was taken to Chorley Hospital.

His injury is not thought to be serious.

No one else was injured during the incident.

Shortly afterwards and during that same evening, a total of six people were arrested, and a machete, crow bar and knives were recovered by officers.

The group were bailed pending further enquiries with strict conditions until Tuesday, April 2.

Following the incident, Ch Insp Gary Crowe from Leyland Police said: "We know that this disorder is related to a personal issue between two members of each group. There is nothing to suggest there are any further fights planned however, if you know different, you must let us know.

"Thankfully only one person suffered a minor injury but it could have been much worse. To those who think it is acceptable to behave like violent thugs, my message is clear. You are not welcome in Leyland and we do not tolerate this kind of shocking, deplorable behaviour.

"Our investigation is on-going and we made four arrests just after the incident happened, close to the scene.

"We know that others were involved in this – from both sides of the altercation - and I have a number of officers working on finding out who they are.

"If you know who was involved, saw the disorder, have any mobile phone footage that you haven’t already sent to us or you know anything at all that could help our investigation, please get in touch."

Anyone with any information is urged to contact the police on 101 quoting incident reference 933 of March 4.

Similarly, if anyone has any video or mobile phone footage, please go to www.doitonline.lancashire.police.uk and click ‘Report a Crime or Incident’.

Alternatively independent charity Crimestoppers can be contacted anonymously on 0800 555111 or online at crimestoppers-uk.org.