A 20-year-old man has died following a suspected drug overdose at the Beyond The Valley festival at Lardner, east of Melbourne, Victoria Police said in a statement.

The man, from Mansfield in Victoria’s north east, was flown to hospital on Saturday in a critical condition, but died on Tuesday morning.

Victoria Police spokeswoman Elaine Cooney said investigators were yet to determine the circumstances surrounding the man’s death.

“However, it is not being treated as suspicious,” she said.

Police will prepare a report for the coroner.

Two other men have been taken to hospital in recent days after suspected drug overdoses at the Beyond The Valley festival.

On Monday morning, a man in his 20s was treated by paramedics at the festival and flown to the Royal Melbourne Hospital in a critical condition.

The man’s condition was listed as stable this afternoon.

Early on Sunday morning, paramedics treated another man in his 20s at the festival.

That man was taken to Dandenong Hospital in a critical condition, but he has since been discharged.

Tuesday’s death follows that of another man who died after taking an unknown substance at the Lost Paradise music festival, west of Gosford in New South Wales.

The 22-year-old man, from the Brisbane suburb of Toowong, died in Gosford Hospital on Saturday night after attending the Glenworth Valley event.

Another man and a woman were hospitalised after they also took an unknown substance at the same festival and became sick.

Organisers of the Falls Festival – which was being held over the New Year period at Marion Bay in Tasmania, Byron Bay in NSW and Lorne on Victoria’s Surf Coast – on Sunday sent a message to patrons warning them of a “dangerous orange pill” in circulation across Australia.

“Regardless of pill variation, we want to remind everyone of the potentially fatal risks that come with illicit substances,” the festival said in a statement.

“You do not know what is in them, how your body will react, there is no safe level of consumption.

“One pill can kill.”

–ABC