New Zealand and Australian police are cooperating on an unprecedented attack on binge drinking and violence.

They are focusing on two days of action, on December 11 and 12.

The plan was due to be announced this afternoon, but New Zealand police have confirmed a report in a Sydney newspaper on the issue. However, they will not reveal details of the plan of action in New Zealand until later in the day.

The Daily Telegraph says thousands of extra police including riot squad officers will flood the streets of Sydney and regional towns in New South Wales to declare war on hooligans.