Two more people have been arrested in connection with a robbery at Heathrow Airport in which 21 people sustained injuries by a substance believed to be an irritant spray, according to police.
A man, 24, was taken into custody in the Lambeth area on suspicion of theft and assault and a 23-year-old woman was detained on suspicion of conspiring to commit a robbery. They both remain in custody, the force said.
The arrests come after a probe into an attack at the multi-storey car park at Terminal 3 on Sunday. Before the incident, a pair of female travelers were robbed of their luggage after getting out of a parking garage elevator.
A three-year-old girl was among the injured during the incident. Five people went to hospital for treatment and were later discharged.
Police arrested a man in his thirties for suspected robbery and assault near the location. He was subsequently released pending further inquiries while inquiries continue.
Authorities were alerted at approximately 8:10 in the morning GMT following reports of a number of people injured by an irritating chemical thought to be an irritant spray.
The attack - an event that authorities stated was isolated and not being treated as terrorism - caused train delays and the temporary shutdown of the main airport tunnel and the Terminal 3 parking facility briefly.
