Biosecurity officers have been directed to inspect Katy Perry CDs purchased overseas due to fears they may pose a risk to Australia.

The deluxe version of the U.S. singer's new album PRISM contains a small packet of seeds.

While the production company has assured the Department of Agriculture that the Australian release contains locally sourced seeds, international versions of the album still pose a risk.

"Seeds or plant material of international origin may be a weed not present in Australia or the host of a plant pathogen of biosecurity concern," a department spokesperson said.

It is understood the Australian release contains harmless local Swan River daisy seeds.

But a spokesperson said further inquiries were being made regarding international versions.

"The Australian Government has a strong system in place to detect and respond to material of biosecurity concern. This includes the inspection of mail, cargo and baggage."

Go to News.com.au for the full report.