Two more people have been arrested related to a robbery at Heathrow Airport where 21 people sustained injuries by a substance believed to be pepper spray, according to police.
A man, 24, was arrested in the Lambeth area on suspicion of theft and assault and a woman, 23 was arrested on suspicion of conspiracy to commit robbery. Both individuals remain in custody, the force said.
The arrests come after an investigation into an attack at the multi-storey car park at Heathrow's Terminal 3 this past Sunday. Prior to the incident, a pair of female travelers had stolen from them their luggage upon exiting a car park lift.
A toddler aged three was one of the injured during the incident. Five people went to hospital for treatment and have since been discharged.
Officers detained a man in his thirties for suspected robbery and assault close to the scene. He has since been released under investigation while inquiries continue.
Police were called at about 08:10 GMT after reports came in regarding several people injured by a noxious substance believed to be an irritant spray.
The attack - which police said was isolated and not considered an act of terror - caused train delays and the partial closure of the Central Terminal Area tunnel and the Terminal 3 car park briefly.
Lena Visser is a mindfulness coach and writer passionate about helping others find inner peace.