A Schoolies school trip ended in tragedy after a Sydney teenager fell from a high-rise building on the Gold Coast and died.

Hamish Bidgood was reportedly alone when he fell from the 10th floor of the Surf Regency Apartments on Laycock Street in Surfers Paradise in the early hours of Thursday morning.

He was found in the pool area at the base of the building, where paramedics later performed CPR. They were unable to save him.

The police are now investigating whether the 18-year-old inhaled laughing gas before the fall.

Friends of the Turramurra High School graduate have now cut short their celebrations and returned to Sydney.

A Queensland Police spokeswoman said the death was not being treated as suspicious.

Red Frogs is offering counselling to any Schoolies revellers who feel they have been affected by this tragedy.

If you are concerned about your own mental health or that of a loved one, seek support and information by calling Lifeline 13 11 14, Mensline 1300 789 978 or Kids Helpline 1800 551 800.