Three more teenagers have been arrested following the murder of a 15-year-old boy in broad daylight, taking the total to five.
West Midlands Police said Keon Lincoln was set upon by a group of youths with weapons in the Handsworth area of Birmingham on Thursday.
The force said a 14-year-old boy was arrested at his home address in Birmingham on Saturday night and two others, aged 15 and 16, were arrested at an address in Walsall in the early hours of Sunday.
All three were detained on suspicion of murder and will be questioned by police.
A 14-year-old boy arrested on Friday evening has been released under investigation, and detectives have been granted more time to question another 14 year-old arrested on Friday morning.
Detective Chief Inspector Alastair Orencas, leading the investigation, said: “There has been no let-up in our quest to find those responsible for Keon’s murder and these are significant arrests.
“We are gathering a substantial amount of evidence which will take time to analyse, but we must be thorough to get justice for Keon’s family.
“They have been fully updated with the latest developments.”
Keon was attacked in Linwood Road shortly after 3.30pm on Thursday.
Witnesses said shots were heard and the suspects were armed with knives.
Officers believe the group fled in a white car, which later crashed into a house in Wheeler Street, Lozells.
Keon was taken to hospital but later died.
A post-mortem examination established his cause of death to be gunshot and stab wounds.
Police continue to urge anyone with dashcam footage or any other information related to the case to come forward.