An 18-year-old man has been arrested on suspicion of murdering a 16-year-old boy, with detectives sealing off an area of woodland beside a children's playground as they investigate.Essex Police said officers were called to Waterson Vale, a residential street in Chelmsford, at around 11.30pm on Sunday following reports of a boy sustaining "serious injuries".

An 18-year-old man has been arrested on suspicion of murdering a 16-year-old boy, with detectives sealing off an area of woodland beside a children's playground as they investigate.Essex Police said officers were called to Waterson Vale, a residential street in Chelmsford, at around 11.30pm on Sunday following reports of a boy sustaining "serious injuries".