North Melbourne midfielder Tarryn Thomas is reportedly under police investigation amid allegations of "malicious" and "intimidatory" behaviour towards a former ex-partner.

The 22-year-old is said to have been accused of several instances of worrying behaviour following a dispute with an ex-partner, including alleged behaviour on social media regarding his ex-girlfriend's personal photos and videos, according toย The Herald Sun.ย 

The AFL Integrity Unit is understood to be aware of the issue.

โ€œThe club is aware of a current police investigation involving a player," a North Melbourne spokesperson told News Corp.

"The player is co-operating with police and the club has reported the matter to the AFL's Integrity Unit.โ€

The Herald Sun has also reported that Thomas' car was confiscated in July this year after he was allegedly caught driving without a registered license.

The Roos young gun is alleged to have been stopped at a booze bus in Melbourne's west before having his Mercedes-Benz confiscated. The car was confiscated for 30 days, while a fine nearing $900 was handed down.

Thomas is not scheduled to return to Arden Street for pre-season until early December.