Teen arrested after knife incident outside school

Emergency services were called to Chiltern Hills Academy on Wednesday afternoon

A 17-year-old boy has been arrested following an incident involving a knife outside a school.

Thames Valley Police said it was called to Chiltern Hills Academy, in Chesham, Buckinghamshire, at about 15:00 BST on Wednesday, to reports of a male with a knife.

The teenager was arrested on suspicion of possession of a knife in a public place.

The state secondary school confirmed it was put into "lockdown" and at no point were students or staff in immediate danger.

The teenager has been released under investigation while inquiries continue, the force added.

"There were no reports of any threats made to anybody at the school and we believe this to be an isolated incident," the force said.

Tim Dobbs, the school's principal, said on its website that it was "advised by the police to put the school into lockdown".

"The police isolated this incident using a secure room in the reception area of the school," he said.

Students were kept in their classrooms but were allowed to leave the site by 15:45.

"I can inform you that at no point were students or staff in immediate danger, and the lockdown was conducted out of caution in accordance with our established safety procedures," he added.

Mr Dobbs thanked staff, students and parents for their understanding and support.