A leaked Australian Federal Police (AFP) report has revealed the agency is concerned about the “threat” posed by two Indonesian pilots who are believed to have been radicalised by the Islamic State militant group.

The document titled Identification of Indonesian Pilots with Possible Extremist Persuasions was prepared by the AFP in March this year.

According to American website The Intercept, which first published the document, the intelligence report was distributed to law enforcement agencies in Turkey, Jordan, the United Kingdom and the United States.

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“On 16 March 2015, information was received by the AFP that indicated two possible Indonesian pilots, likely employees of AirAsia and Premiair, had posted information on their Facebook pages that inferred support to the Islamic State (ISIL),” the report’s summary said.

AirAsia touched down in Adelaide during its 2013 launch. Photo: AAP

The two Indonesian pilots identified are Ridwan Agustin and Tommy Abu Alfatih.

The report states the latter is believed to have travelled to Australia last year along with other destinations around the world.

“Upon review of the content from both accounts it is assessed that these persons are likely being influenced by radical elements – at least from the online environment – and as a result, may pose a security threat,” the report stated.

“Both [pilots] appear to be influenced by pro-ISIL elements including extremist online propaganda by well-known radical Indonesia outlets and a suspected Indonesian foreign terrorist fighter who is likely to be in either Syria or Iraq.”

The Indonesian government said it had been unaware of the allegations, with foreign ministry spokesman Arrmanatha Nasir saying he only found out about the information through the media.

Indonesia’s coordinating minister for politics, law and security Tedjo Edhy Purdijatno said the information needed to be verified by Indonesian security agencies, including the National Intelligence Agency.

The AFP declined to comment, saying it does not comment on intelligence matters.

-ABC