After the death of a 16-year-old boy in Chelmsford on Sunday night, police arrested an 18-year-old man on suspicion of murder.
Essex Police were called to Waterson Vale in the city at around 11.30pm after reports of a boy sustaining serious injuries.
The victim was taken to the hospital, where he died.
The 18-year-old was arrested early Monday morning and is still in custody.
“This is a tragic incident in which a 16-year-old child has lost his life,” said Detective Chief Inspector Ashley Howard of the Kent and Essex Serious Crime Directorate.
“We have a team of officers working solidly to determine what has happened here and get justice for his family.
“A cordon has been put in place at Waterson Vale and we are likely to remain there for a while whilst inquiries continue.
“I know that this may cause disruption however it is vital we understand how this incident happened.
“We are appealing to anyone who was in the area of Waterson Vale or surrounding roads in Chelmsford last night and may have witnessed or heard anything, or anyone who has any further information, to contact us to assist with this investigation.”