Overview
- Officers were called around 8:11 a.m. Sunday to the Terminal 3 multi‑storey car park, where a group of men sprayed an irritant believed to be a form of pepper spray before fleeing.
- London Ambulance Service treated 21 people and took five to hospital, with injuries not thought to be life‑threatening or life‑changing.
- Armed police arrested one man on suspicion of assault and he remains in custody as inquiries continue to trace others involved.
- The terminal stayed open, but the Heathrow Tunnels closed temporarily and rail links saw suspensions and delays, with long waits reported for buses as services recovered.
- The Metropolitan Police increased their presence at the airport, ruled out terrorism, and appealed for witnesses citing reference CAD 1803 7 DEC.