Australian spies have reportedly been sacked and demoted over booze-fuelled rampages in Afghanistan.

An internal review was launched by the Australian Secret Intelligence Service in 2015 amid concerns agents had become consumed by negative 'frontier culture'.

The inquiry found spies were abusing alcohol and were fraternising improperly with troops from Australia's Special Air Service Regiment (SASR).

'They got caught up in a sort of frontier culture,' one source told The Australian.

Australian spies have allegedly been sacked and demoted over booze-fuelled rampages in Afghanistan

'That should and did raise alarm bells.'

The review also found there was no proper supervision when the operatives were out in the field.

A booze-fuelled night in Kabul lead to an SASR troop pulling out a weapon on a ASIS agent in 2013.

An inquiry, conducted by the Inspector-General of Intelligence and Security (IGIS), followed the incident.

Paul Symon, the ASIS director general, said: 'This IGIS noted that while no physical injury resulted, the incident had the potential to cause serious injury - and that ASIS's investigation of the incident had highlighted systemic issues, into which (the IGIS) would inquire'.

Aussie troops in Afghanistan heavily relied on ASIS agents to provide important intelligence material for their missions.

An internal review was launched by the Australian Secret Intelligence Service in 2015 amid concerns agents had become consumed by negative 'frontier culture' (stock image)

The progression of the war meant more ASIS agents were deployed by 2012 to meet the demand for intelligence.

But as they grew in numbers, so did the concerns about their conduct in frontier culture.

Another source familiar with the findings of the report said it highlighted some ongoing problems.

'Some of it was personality-based. There was concerning reports around the way they dealt with alcohol,' the source said.