🔗 Share this article Two Detentions Following London Heathrow Irritant Spray Incident This incident resulted in the temporary shutdown of the CTA tunnel and the Terminal 3 parking area. Two more people are now in custody related to a robbery at Heathrow Airport in which 21 people were injured by a substance believed to be pepper spray, according to police. A man, 24, was taken into custody in Lambeth on suspicion of theft and assault and a woman, 23 was detained for suspected conspiracy to commit robbery. Both individuals are still being held, authorities confirmed. The arrests come after an investigation into an assault at the multi-storey car park at Heathrow's Terminal 3 this past Sunday. Before the attack, two women were robbed of their suitcases upon exiting a parking garage elevator. A three-year-old girl was among the those hurt in the event. A total of five individuals were taken to the hospital for medical care and have since been released. Police arrested a man in his thirties on suspicion of robbery and assault near the location. He has since been released under investigation as the investigation proceeds. Police were alerted at about 8:10 in the morning GMT following reports of a number of individuals injured by a noxious substance believed to be an irritant spray. The assault - an event that police said was a standalone incident and not being treated as an act of terror - caused train delays and the partial closure of the Central Terminal Area tunnel and the Terminal 3 car park briefly.