A man was arrested on suspicion of assault after several people were sprayed with a substance believed to be pepper spray at Heathrow’s Terminal 3 car park, prompting an armed police response and flight delays. The Met Police say the attack is not being treated as terrorism, noting the incident appears to have started with an argument among people who knew each other. Victims are being treated for non-life-threatening injuries as officers search for additional suspects and increase security acro