A 15-year-old died after what police described as an "incident" in a flat in Watford.

Officers were called to Water Lane at around 2.30pm today after the teenage boy was found.

Reports suggest he had been stabbed.

READ MORE: Air ambulance scrambled for man 'stabbed in chest'

The air ambulance landed on Watford's ring road so the boy could be treated.

Sadly, the boy died at the scene,

Police have launched an investigation.

Officers were called to an address in Water Lane at around 2.30pm after a 16-year-old boy was discovered with injuries.

Police are treating the death as suspicious.

There is no information to suggest the incident is terrorism related.

Anyone with information about what happened should contact Hertfordshire Constabulary on the non-emergency number 101 or can call Crimestoppers anonymously on 0800 555 111 or at www.crimestoppers-uk.org.