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.

Roberts's biography on Twitter previously listed his roles at Global, as well as a link to its website. Those references appear to have been removed from his account as of Thursday evening.

A biography posted on the Global website says that Roberts started his career in a radio newsroom and later jumped to television.

Roberts had worked at Global as far back as 2000, but had been part of Global Toronto since 2001.