Two more people have been arrested related to a robbery at Heathrow Airport where 21 people sustained injuries by what is thought to be pepper spray, according to law enforcement.
A man, 24, was taken into custody in Lambeth on suspicion of theft and assault and a woman, 23 was detained for suspected conspiring to commit a robbery. Both individuals are still being held, the force said.
The arrests follow an investigation into an assault at the multi-level parking garage at Heathrow's Terminal 3 this past Sunday. Before the incident, two women were robbed of their suitcases upon exiting a parking garage elevator.
A toddler aged three was one of the injured during the incident. A total of five individuals went to hospital for treatment and have since been discharged.
Officers arrested a 31-year-old man for suspected robbery and assault near the scene. He has since been released under investigation as the investigation proceeds.
Authorities were called at about 08:10 GMT following reports of a number of people hurt by a noxious substance thought to be an irritant spray.
The attack - an event that police said was a standalone incident and not considered an act of terror - resulted in train delays and the temporary shutdown of the main airport tunnel and the Terminal 3 car park for a short time.
