Two more people are now in custody related to a theft at London's Heathrow Airport in which 21 people were injured by a substance believed to be an irritant spray, as stated by law enforcement.
A man, 24, was taken into custody in Lambeth for suspected 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 come after an investigation into an attack at the multi-level parking garage at Terminal 3 this past Sunday. Prior to the attack, two women were robbed of their suitcases after getting out of a parking garage elevator.
A toddler aged three was among the injured during the incident. A total of five individuals went to hospital for medical care and have since been discharged.
Officers arrested a 31-year-old man on suspicion of robbery and assault near the location. He has since been released under investigation while inquiries continue.
Police were alerted at about 08:10 GMT following reports of several people hurt by an irritating chemical thought to be an irritant spray.
The attack - which authorities stated was a standalone incident and not being treated as an act of terror - caused delays to rail services and the temporary shutdown of the main airport tunnel and the T3 car park briefly.
