Following the fatal stabbing of a fourth juvenile at Crawley railway station in West Sussex, three youths have been detained.
At after 3:20 PM today, police were summoned to the incident on Malthouse Road in the town.
A 18-year-old male was discovered with critical injuries, but he passed away there.
During a police helicopter search, two other youngsters, ages 17 and 18, from Worthing and Horsham, were detained.
An 18-year-old woman from Crawley was also arrested for assisting an offender.
The victim’s next of kin have been informed and are receiving support.
The incident is being treated as isolated and there is not thought to be any threat to the wider public.
Detective Chief Inspector Debbie White said: ‘This is a fast-moving investigation and we are asking anyone with any information about the incident to please come forward.
‘We are treating this as an isolated incident with no threat to the wider community, however the public can expect to see an increased police presence in the area this evening as our enquiries continue.
‘In the meantime, we would urge the public to refrain from speculating around the circumstances.
‘Our thoughts remain with the victim’s family at this difficult time, and we are determined to find those responsible for this tragic crime and bring them to justice.”