Two men and a woman have been arrested in connection with the murder of Fahad Mohamed Nur near Cathays Railway Station.
The men, aged 24 and 22, from Cardiff, have been arrested on suspicion of murder and a 34-year-old woman from Birmingham has been arrested on suspicion of assisting an offender.
The younger male and the woman were arrested at Heathrow Airport early this morning and arrangements are being made to bring them back to Cardiff for questioning.
Fahad’s family have been updated and continue to be supported by specially-trained family liaison officers.
South Wales Police thanks the community for the support and information that has already been provided.
Detectives are still appealing for witnesses, particularly in relation to two men seen on CCTV in Park Place, near Cathays Railway Station and Cardiff Students Union.
Officers were called to the lane which links Park Place to Corbett Road at approximately 00:24hrs on Sunday, June 2 following reports that a man had been stabbed.
Fahad, 18, was taken to the University Hospital of Wales, Cardiff, where he died from his injuries.
CCTV footage shows two men leaving the lane adjacent to Cathays Railway Station and then running across Park Place in the general direction of the city centre.
Senior Investigating Officer, Detective Chief Inspector Mark O’Shea, from South Wales Police, said:
“While the arrests are significant developments in this investigation, we are still very much appealing for witnesses.
“In particular we are appealing for information on two men seen on CCTV running across Park Place at around the time Fahad was sadly found with fatal injuries.
“From the footage we can see there are a large number of potential witnesses in the area and lots of vehicles, including taxis, driving along Park Place.
“We are appealing to anyone who may have seen these two men late on Saturday night or during the early hours of Sunday. Where were they and where did they go?
“Equally we want to speak to anyone who was driving in the area, including taxi drivers, who might have dash-cam footage.
An incident room has been set up in Cardiff Central Police Station and a team of detectives are working on the investigation.
“Fahad comes from a loving family who are devastated by what has happened, and their grief is shared by the wider Somali community who are proving to be an invaluable support,” added DCI O’Shea.
“We are extremely grateful for information already received from the community and would urge anyone else with information to please contact us.”
Information and digital footage can be submitted online via a public portal https://mipp.police.uk/operation/62SWP19A85-PO1
Alternatively, please contact South Wales Police via 101 or Crimestoppers anonymously on 0800 555 111 quoting reference number *198071.