Two more people are now in custody in connection with a theft at London's Heathrow Airport where over twenty individuals were injured by a substance believed to be pepper spray, according to police.
A 24-year-old man, was arrested in the Lambeth area for suspected robbery and assault and a 23-year-old woman was arrested for suspected conspiring to commit a robbery. They both remain in custody, the force said.
The arrests follow a probe into an attack at the multi-storey car park at Terminal 3 on Sunday. Before the incident, a pair of female travelers were robbed of their luggage upon exiting a parking garage elevator.
A toddler aged three was one of the injured in the event. Five people were taken to the hospital for treatment and were later released.
Officers detained a 31-year-old man for suspected robbery and assault near the scene. He has since been released under investigation as the investigation proceeds.
Police were alerted at about 08:10 GMT following reports of a number of people injured by an irritating chemical believed to be an irritant spray.
The assault - which police said was isolated and not being treated as an act of terror - caused delays to rail services and the partial closure of the Central Terminal Area tunnel and the T3 car park for a short time.
