A congressional probe accuses Republican gubernatorial candidate Nathan Deal of six violations of House and government ethics rules stemming from a no-bid contract between his auto salvage business and the state.

The nonpartisan board of the Office of Congressional Ethics released the report on Monday.

There was no immediate comment from Deal's campaign.

Deal resigned from Congress March 21 after casting a vote against the health overhaul bill. Because he is no longer in the U.S. House, he faces no penalty from the probe.

Congressional investigators found that Deal made at least $75,000 in 2008 in outside income, well over the limit of $25,830.