The North Melbourne Football Club is aware of serious historical allegations made against individuals who worked at the Hawthorn Football Club, including incoming North Melbourne coach Alastair Clarkson.

The matters raised are now with the AFL's Integrity Unit and Alastair welcomes the opportunity to co-operate with any investigation relating to the claims. 

Alastair was due to commence work with North Melbourne on November 1 however he will delay the start of his tenure to allow time to fully participate in the investigation. 

Given the matters raised are confidential and the investigation is ongoing, the club will not provide any further comment at this time.