A 17-year-old who was found dead at Barry Docks has been named by police.
Police launched a murder investigation after the body of Harry Baker, from Rumney in Cardiff, was found on Wimborne Road on Wednesday morning.
Officers were called to the scene at 5.50am and the area remains cordoned off.
They have arrested three men and one woman on suspicion of his murder.
The three men aged 33, 36 and 47, from Barry, and the 38-year-old woman from Carmarthenshire, are in police custody.
A JustGiving page was set up to help out Harry's family which said: "Harry Baker had his life taken we would like to pull together to help his family in such sad times."
One friend wrote: "My heart is breaking for the family. He was so young and such a lovely lad, this world is getting worse by the day."
Anyone with information is asked to call 101.