Nick Cave's 15-year-old son has died.

Arthur Cave was found with life-threatening injuries on the underpass of Ovingdean Gap after falling from a cliff in Brighton yesterday (14.07.15) and members of the public administered first aid before he was taken to Royal Sussex County Hospital by air ambulance.

He later passed away from his injuries.

His death is not being treated as suspicious and the coroner is investigating the tragedy, Sussex Police have said.

Friends reportedly gathered to pay tribute to Arthur at the nearby Ovingdean Undercliff Cafe following his tragic passing.

In a statement, the 57-year-old musician - who was born in Australia - and his wife Susie paid tribute to their ''beautiful, happy'' son, who is also survived by twin brother Earl.

They said: ''Our son Arthur died on Tuesday evening. He was our beautiful, happy loving boy.

''We ask that we be given the privacy our family needs to grieve at this difficult time.''

Both Arthur and Earl appeared in Nick's 2014 biopic '20,000 Days On Earth'.