Five teenagers have been arrested on suspicion of murdering a 16-year-old boy from Walsall who was stabbed to death outside a party at a social club.
Ben Morutare was knifed in the leg during a disturbance outside the Smethwick Home Guard and Old Comrades Club in Oldbury Road, Smethwick, during the early hours of Saturday morning.
West Midlands Police said a 19-year-old man from Dudley, two 18-year-old men from Birmingham, an 18-year-old man from West Bromwich and a 17-year-old male from Birmingham were arrested Thursday night.
Police said an 18-year-old man who was arrested in Dudley on Wednesday has been released on bail.
The victim, described as "protective" and "lovable", was taken from the scene to Birmingham Children's Hospital but he could not be saved.
In a statement released through police on Thursday, his family said: "Ben was a beloved son, brother and nephew. Ben was loved dearly by his family and many more who knew him.
"One thing our Ben never forgot was to constantly remind his family, especially his mum, how much he loved and cared for them. He was a protective son and brother.
"Ben would never hurt anyone, he was such a lovable child. Words cannot express how much we miss our Ben and the pain we are enduring."
Urging witnesses to contact police, the family added: "We fully appreciate all the witnesses who have come forward so far and we kindly ask and encourage other people who may have information to come forward."
•Anyone with information is urged to contact police on 101 or Crimestoppers anonymously on 0800 555 111.