Hollywood star Sylvester Stallone has pleaded guilty to importing and possessing prohibited imports in Australia, Australian Broadcasting Corporation radio reported Tuesday.

The actor, famous for his starring role in the "Rocky" and " Rambo" films, apologized for having the banned imports, Human Growth Hormone and testosterone, when he visited Sydney to promote a film earlier this year.

A Sydney court heard Stallone did not know he was breaking the law in Australia.

Lawyers for Stallone have entered guilty pleas to two charges of importing and possessing prohibited imports.

His lawyer, Philip Boulten, told the court Stallone needed the substances to treat a medical condition.

Boulten said the actor was mortified by the charges, and his apology to the court was heartfelt.

He said Stallone was unaware it was against Australian law, and would not have brought the substances into the country if he had known.

But prosecutor John Agius said Stallone had thrown the vials of testosterone out of his hotel window in an attempt to cover up the offense.

Stallone will be sentenced in next week and faces a maximum penalty of 22,000 Australian dollars (18,000 U.S. dollars).

Source: Xinhua