Turnbull rejects talk of US strike on Iran

Prime Minister Malcolm Turnbull has played down a report the United States could be preparing to bomb Iran as early as next month.

The ABC has cited unnamed senior security figures within the federal government as saying they believed the US was eyeing Iran's nuclear facilities.

The top-secret Pine Gap base in the Northern Territory and other Australian defence facilities could play a role in identifying targets, the ABC reported on Friday.

But the prime minister rejected this as "speculation".

"The story on the ABC, which cites senior Australian government sources, has not benefited from any consultation with me, the foreign minister, the defence minister or the chief of the defence force," he told ABC radio.

"So perhaps you should inquire of the authors of the article."