Michael Cohen testified that federal prosecutors are investigating unspecified criminal allegations regarding President Trump that haven’t been made public, the Washington Post reports.

Rep. Raja Krishnamoorthi (D-IL) asked Cohen whether he was aware of “any wrongdoing or illegal act'”concerning the president that had not been acknowledged during Cohen’s testimony. Cohen said he was unable to answer because it’s a topic under investigation by the Southern District of New York.

Wall Street Journal: “We’re not sure what this means exactly, but it’s certainly an interesting revelation.”