Steve McPherson ABCThe resignation this week of ABC entertainment honcho Steve McPherson was surprising enough, but now the affair has taken an ugly turn.

The Hollywood Reporter claims McPherson, who's led the network for six years, resigned as he was the subject of an ongoing, formal investigation surrounding charges of sexual harassment. The resignation comes just as the networks are preparing to showcase their fall lineups for TV critics.

McPherson's attorney, Tom Hoberman, issued a statement to the Reporter, which, curiously, didn't include specific denials of the rumors surrounding an investigation:

"Upon Steve McPherson returning to work from his vacation on Monday, he made a voluntary decision to resign and ABC accepted his resignation," read Hoberman's statement. "It is not uncommon for high level executives to be the subject of gossip and innuendo. That would include rumors of internal situations which can easily be misinterpreted or misrepresented. Seems like it goes with the territory, and there is nothing further to discuss."