The licence of a Kokoda track trekking company has been cancelled after a man died from a heart attack suffered on one of the company's walks last week.
In a statement, Papua New Guinea minister and chair of the Kokoda Initiative Committee Simon Kilepa said the company, Adventure Kokoda, had its licence suspended over allegedly evading payment for trekking fees.
Last Monday, South Australian veteran and father Paul Miller died after a suspected heart attack on the Kokoda Track while trekking with the same company.
Pacific International Hospital said those with him attempted cardio-pulmonary resuscitation (CPR) but he was pronounced dead after he was flown to Port Moresby.
Mr Miller was walking with his son at the time.
The trek was intended as a fundraising effort run by veterans and first responders support group Operation Unity SA.
Father and son were on the 96-kilometre jungle trail through the Owen Stanley mountain range, which marks out the site of fierce fighting between Australian and Japanese troops during World War II.
Thousands of Australians walk the track each year, retracing the steps taken by the soldiers during the four-month battle.
April is one of the peak periods for tour groups walking the track in the lead-up to Anzac Day.
ABC
