The Chiltern Hills Academy was advised by police to keep everyone inside just after 3 this afternoon (4/6) whilst they dealt with a situation near the school.
No one was harmed and the lockdown was lifted by 3:45pm. The school have thanked staff, pupils, and parents for staying calm during the incident. They posted this on social media earlier:

Young Architect of the Year honour for Turville church restoration
University celebrating 50th anniversary
Strong results during the Winter of Action operation
Appeal after bookmakers robbed in High Wycombe
£2m appeal for cardiology equipement
Football Club Marks One-Year Anniversary of Championing Men’s Mental Health
Food waste recycling expanding to flats in the south of Buckinghamshire
Bucks Olympians going for gold in Italy











