Several port terminals across Australia have been closed as the Australian Federal Police investigate a cyber security breach.
DP World discovered the breach on Friday night and closed its container terminals in Brisbane, Sydney, Melbourne and Fremantle.
The container terminals are expected to be closed for days which severely impacts the movement of goods in and out of the country.
The National Coordination Mechanism is working with the company and government to resolve the incident.
Only landside operations from DP World have been impacted with ship movements remaining unaffected.