Two more people are now in custody related to a theft at London's Heathrow Airport where 21 people were injured by a substance believed to be an irritant spray, as stated by police.
A man, 24, was arrested in the Lambeth area for suspected theft and assault and a 23-year-old woman was detained for suspected conspiring to commit a robbery. They both remain in custody, the force said.
These detentions come after an investigation into an attack at the multi-storey car park at Terminal 3 on Sunday. Before the attack, two women were robbed of their suitcases after getting out of a car park lift.
A three-year-old girl was among the injured in the event. A total of five individuals went to hospital for medical care and have since been released.
Officers arrested a man in his thirties for suspected theft and assault near the location. He has since been released under investigation as the investigation proceeds.
Police were called at about 08:10 GMT following reports of several individuals hurt by a noxious substance thought to be an irritant spray.
The attack - which authorities stated was isolated and not being treated as an act of terror - resulted in train delays and the partial closure of the Central Terminal Area tunnel and the Terminal 3 car park for a short time.
