Five more people have been arrested as part of the ongoing investigation into the fatal stabbing of Ramarni Crosby in Gloucester last year.
Four women, aged 40, 35, 21 and 20, and one boy, aged 17, have all been arrested on suspicion of assisting an offender.
Four of the people, who are all from Gloucester, have been released under investigation. One has been released on bail.
Ramarni, aged 16 and from Frampton on Severn, sustained fatal stab wounds during an incident on Stratton Road, Gloucester, on 15 December last year.
Nine people have been charged in connection with his death with a trial due to start on Wednesday 15 June at Bristol Crown Court.