The Australian Federal Police and the Reserve Bank have been victims of apparent cyber attacks.

A spokeswoman from the federal police said the website was still operating when staff left work on Wednesday evening but noticed that it had gone down early on Thursday morning. The website appeared to have been restored by 8.15am.

The AFP website crashed after an apparent cyber attack.

The department is unaware of the exact time the site went down.

“The AFP takes any attack on its, or any other government website very seriously,” the spokeswoman said.