Six teenagers arrested in connection with the death of Hassan Mohammed in Southend yesterday have been released.
The men, aged between 17 and 19, were detained following the incident in York Road on Monday (July 7). Essex Police have since opened a murder investigation.
Five have been bailed pending further enquiries, while one has been released with no further action.
Police made three further arrests in north London on Wednesday (July 9). These remain in police custody being questioned by detectives.