Ontario's governing Liberal Party has quashed an opposition motion asking for a legislative inquiry into scandals at Ontario Lottery and Gaming Corporation.

Conservative Leader John Tory said over the weekend that he would introduce the motion on Monday. He said the inquiry was needed because Ombudsman Andre Marin's report did not go far enough.

Tory wanted the inquiry to look into the government's role and when they knew about the allegations of wrongdoing at the lottery corporation.

Despite support from provincial New Democrats, the call for an inquiry was shot down by the Liberals who used their majority power in the legislature to stop the idea from proceeding.

Tory accused Premier Dalton McGuinty of trying to "cover up" the scandal. Despite that, Tory said he would do all he can to "get to the bottom of this."

David Caplan, the minister responsible for lotteries, said an inquiry was not needed, pointing to a police investigation and the government's pledge to implement all of Marin's 23 recommended reforms.

The scandal erupted in March when Marin issued a report saying too many insiders have won lottery prizes.

The day after the report's release, Caplan turned all files and information reviewed by Marin over to the Ontario Provincial Police.

Later that week, a Toronto law firm launched a class-action suit against OLG on behalf of a client who has purchased lotto tickets but never won. The lawsuit is seeking $1.1 billion, including $100 million in punitive damages.

With files from The Canadian Press