Drug-related break-in in Adelaide

An Adelaide man who was the victim of a home invasion robbery could be in trouble himself.

His problems started on Sunday night when he answered a knock at the front door and two men, one armed with a knife, pushed past him and stole money and jewellery from his Modbury North home.

Police say the man took more than an hour to call police who upon arrival found equipment used to grow cannabis.

No charges have been laid but police say investigations are continuing.