The Northern Territory Chief Minister has called for an investigation into the high number of Australian deaths in South-East Asia, so travellers can be better prepared.

Two Australian men from Darwin, Kane Scriven and Nicholas Parkin, died from suspected drug overdoses just days apart in Laos last week.

Their deaths will not be investigated by local authorities.

The Chief Minister Terry Mills says the deaths of travellers in Asia should not only be looked at individually, but as a broader issue.

"It could be alcohol that has been illicitly brewed," he said.

"In some cases they are proposing that it may be a form of insecticide poisoning.

"We're not certain but there are a number of them and that's the striking aspect of this.

"There needs to be broader consideration so that travellers better understand."