🔗 Share this article Two Detentions in the Aftermath of Heathrow Irritant Spray Attack This incident caused the partial closure of the CTA tunnel and the Terminal 3 car park. An additional two individuals have been arrested in connection with a robbery at Heathrow Airport where 21 people were injured by what is thought to be pepper spray, according to law enforcement. A 24-year-old man, was arrested in Lambeth on suspicion of robbery and assault and a 23-year-old woman was detained for suspected conspiracy to commit robbery. Both individuals are still being held, authorities confirmed. These detentions follow a probe into an assault at the multi-storey car park at Terminal 3 on Sunday. Before the incident, two women were robbed of their suitcases upon exiting a car park lift. A toddler aged three was one of the injured during the incident. Five people were taken to the hospital for treatment and have since been discharged. Officers detained a man in his thirties for suspected theft and assault close to the scene. He has since been released under investigation while inquiries continue. Police were alerted at approximately 8:10 in the morning GMT after reports came in regarding a number of individuals injured by a noxious substance thought to be an irritant spray. The attack - which authorities stated was isolated and not considered terrorism - caused delays to rail services and the temporary shutdown of the main airport tunnel and the T3 parking facility for a short time.