01/15/2015 07:13 EST | Updated 03/17/2015 05:59 EDT

Leslie Roberts resigns as Global host following investigation

News anchor Leslie Roberts has resigned from Global Television following an internal investigation triggered by the revelation that he was part-owner of a public relations company.

The company reported Thursday that Roberts had resigned as the executive editor and anchor of Global Toronto and as the co-host of The Morning Show.

Roberts had not disclosed his involvement in the company to Global.

On Thursday, Global published Roberts's resignation letter on its website.

"I regret the circumstances, specifically a failure to disclose information, which led to this outcome," Roberts said in the letter.

The Toronto Star recently revealed that Roberts was a part-owner of Buzz PR and that some of that company’s clients had appeared on his show.