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 for suspected theft and assault and a 23-year-old woman was arrested on suspicion of conspiring to commit a robbery. They both remain in custody, authorities confirmed.
These detentions follow a probe into an attack at the multi-storey car park at Heathrow's Terminal 3 on Sunday. Prior to the incident, a pair of female travelers had stolen from them their luggage after getting out of a car park lift.
A toddler aged three was among the injured in the event. A total of five individuals went to hospital for treatment and were later released.
Police detained a man in his thirties on suspicion of theft and assault near the location. He has since been released under investigation while inquiries continue.
Authorities were alerted at approximately 08:10 GMT following reports of a number of people hurt by an irritating chemical thought to be pepper spray.
The assault - an event that authorities stated was a standalone incident and not considered an act of terror - resulted in delays to rail services and the partial closure of the Central Terminal Area tunnel and the T3 car park for a short time.
