At about 11.40pm, last night (Thursday, May 3), emergency services were alerted to a missing 18-year-old man in the Arbroath area.
Information suggested he may be in the area of Arbroath cliffs and a search began including police officers with a police dog, coastguard and a ARCC helicopter from Kinloss.
A man with life-threatening injurues was found at the foot of the cliffs at about 4.30am.
Paramedics were quickly at the scene and tended to the casualty en-route by helicopter to Ninewells Hospital in Dundee.
Tragically he succumbed to his injuries before arriving at hospital.
The deceased details will not be released until he has been formally identified.
There are no suspicious circumstances surrounding the incident and as with all sudden deaths a report will be submitted to the Procurator Fiscal.