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, as stated by law enforcement.
A man, 24, was taken into custody in Lambeth on suspicion of robbery and assault and a 23-year-old woman was arrested for suspected conspiracy to commit robbery. Both individuals remain in custody, the force said.
The arrests come after a probe into an attack at the multi-level parking garage at Heathrow's Terminal 3 on Sunday. Before the incident, a pair of female travelers had stolen from them their luggage upon exiting a parking garage elevator.
A three-year-old girl was among the injured during the incident. Five people were taken to the hospital for medical care and have since been released.
Officers detained a 31-year-old man for suspected theft and assault close to the location. He has since been released under investigation while inquiries continue.
Authorities were alerted at about 08:10 GMT following reports of several people injured by a noxious substance believed to be pepper spray.
The assault - an event that police said was a standalone incident and not being treated as an act of terror - resulted in train delays and the partial closure of the main airport tunnel and the T3 car park for a short time.
