Australian police have seized 320kg of meth amphetamine, making it Western Australia’s largest ice haul ever.

Police claim the amount is the equivalent of 3.2 million individual hits of ice, with a street value of $320 million.

“We have a growing problem with crystal meth amphetamine,” Federal Justice Minister Michael Keenan said at a press conference today.

“And we are determined to do all we can to stop the organised criminals who peddle in this misery.”

The announcement is the result of the joint efforts of WA Police, the Australian Crime Commission and the Australian Federal Police.

Representatives from WA Police, the Australian Crime Commission and the Australian Federal Police. (9NEWS)

“This largest seizure in Western Australian history is example of the dividends that are being paid by the unprecedented cooperation between Commonwealth and state law enforcement,” Mr Keenan said.

“That’s why we founded the National Anti-Gang Squad here in Western Australia out of the $10 million used from the proceeds of crime.

“We’re also doing all we can at a Commonwealth level to stop these drugs from crossing our borders, and we’ve invested an extra $88 million in the Australian Border Force to do exactly that.”