Premier Dalton McGuinty admitted provincial ministries are being investigated by the OPP’s anti-rackets branch.

Police executed search warrants at Macdonald Block, a government complex at Bay and Wellesley Streets, on July 15. Initial reports suggested investigators had targeted the ministry of transportation and Ontario Realty Corp for alleged “irregular” financial transactions with outside vendors.

On Tuesday, McGuinty confirmed the OPP had targeted the ministries of transportation, economic development and trade and community and social services. The Premier said he wasn’t aware of an investigation involving the realty corporation.

"What I want to undertake to do here is to keep Ontarians as informed as best as I can given the information that we receive from police," McGuinty said.

"I can tell you that there is an investigation underway that affects three ministries."

No charges have been laid.

While the government has remained mostly mum on the issue since the raid earlier this month, it did insist no politicians or political staff were involved in the investigation.

Opposition parties have criticized the Liberals’ silence on the provincial police probe.

"It's not a matter of the civil service being tarred, it's a matter of the premier and his ministers being tarred," NDP justice critic Peter Kormos said.

"The fact that the ministers responsible have not advised the public as to who the subjects are and the crimes that are being suspected ... that alone is enough to tell a minister that she or he isn't up to the job."