The late John McCarthy.

The late John McCarthy. Photo: Getty Images

JOHN McCarthy's death in Las Vegas was an accident, a US coroner as ruled. But American authorities have declined to say whether drugs or alcohol were found in the Port Adelaide footballer's system.

McCarthy, 22, died last month after falling more than nine metres from the roof of the Flamingo Hotel.

John Fudenberg, assistant coroner in Clark County, Nevada, said McCarthy died from injuries sustained in an accidental fall.

''We ruled the cause of death as multiple injuries due to a fall from height and the manner of death is accidental,'' he said.

He would not say whether alcohol or drugs were found in McCarthy's system as the toxicology report was not a matter of public record.

A Port Adelaide spokesman acknowledged the finding and said the club was still confirming plans to honour McCarthy. These are expected to be announced before the start of season 2013.

McCarthy became separated from his teammates while holidaying in the gaming capital.

Port Adelaide leaves for Europe this week where it will spend time at the Australian Sports Commission's elite training centre in Milan, Italy, before playing an exhibition match against the Western Bulldogs in London on November 3.