Former Connecticut Gov. John Rowland, who has come under scrutiny regarding his second career as a talk radio show host, resigned from his program Thursday evening after months of speculation about his role in an illegal campaign funding scheme.

The resignation, which the Republican former governor announced near the end of his daily show on WTIC-AM in Farmington, comes days after Rowland was further implicated in an ongoing investigation into a 2012 congressional campaign.

Rowland told listeners on Thursday, “Today will be my last show as I'm leaving the station to take care of some personal issues.” He also added, “It's been a great experience and we'll take it from there, and God bless you all.”

A story about the resignation posted on WTIC's website included a statement from program director Jenneen Lee that said, in part, “We accept Mr. Rowland's decision to step down at this time.”

Rowland could not be reached for comment Friday, while WTIC did not respond to requests for comment. CBS Radio declined to comment on the reason for the resignation, but stated in an email, “As you know John Rowland announced he would be leaving the station to take care of some personal issues. We accept Mr. Rowland's decision to step down at this time.”

A federal investigation has been underway for months into allegations that the afternoon drive time host and former GOP rising star received hidden financial support from one of the 2012 candidates for Connecticut's 5th Congressional seat, Republican Lisa Wilson Foley, and did not disclose it on the air as he attacked her primary opponent.

The situation worsened for Rowland on Monday when Foley and her husband, Brian, pleaded guilty to misdemeanor campaign violations, according to The New York Times. The Times also reported Rowland had been described in court papers as one of four unindicted co-conspirators.

According to court documents, the Foleys had hired Rowland as a consultant from September 2011 to April 2012, but funneled some $35,000 in payments to him, through Mr. Foley's nursing home, and other entities, to avoid reporting them and hide the payments from voters, the Times reported.

Local journalism veterans and one of the candidates who ran against Wilson Foley in the 2012 race criticized Rowland in February as the investigation drew attention and Rowland hired an attorney.