Two 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 a substance believed to be an irritant spray, according to law enforcement.

A man, 24, was arrested in the Lambeth area on suspicion of robbery and assault and a woman, 23 was arrested on suspicion of conspiracy to commit robbery. They both are still being held, the force said.

These detentions follow a probe into an attack at the multi-storey car park at Terminal 3 on Sunday. Prior to the incident, a pair of female travelers were robbed of their suitcases after getting out of a car park lift.

A toddler aged three was among the those hurt during the incident. Five people were taken to the hospital for treatment and have since been released.

Officers detained a man in his thirties on suspicion of theft and assault near the scene. He was subsequently released under investigation as the investigation proceeds.

Police were called at about 08:10 GMT following reports of a number of people hurt by a noxious substance thought to be an irritant spray.

The attack - an event that authorities stated 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 parking facility briefly.