A Pair of Arrests in the Aftermath of London Heathrow Irritant Spray Attack

An additional two individuals are now in custody related to a robbery at Heathrow Airport where 21 people were injured by what is thought to be an irritant spray, according to law enforcement.

A 24-year-old man, was arrested in Lambeth for suspected theft and assault and a 23-year-old woman was arrested for suspected conspiracy to commit robbery. They both remain in custody, the force said.

These detentions come after a probe into an assault at the multi-level parking garage at Terminal 3 this past Sunday. Before the incident, a pair of female travelers were robbed of their suitcases upon exiting a car park lift.

A toddler aged three was among the those hurt during the incident. A total of five individuals went to hospital for medical care and were later discharged.

Police arrested a man in his thirties on suspicion of robbery and assault near the scene. He has since been released pending further inquiries as the investigation proceeds.

Authorities were called at approximately 08:10 GMT following reports of several individuals hurt by an irritating chemical believed to be an irritant spray.

The assault - which police said was a standalone incident and not considered an act of terror - caused train delays and the partial closure of the main airport tunnel and the T3 car park for a short time.