The Senate Judiciary Committee inquired about at least one additional allegation of misconduct against Supreme Court nominee Brett Kavanaugh, according to a transcript of a phone call released by the committee Wednesday.

Republican Senate investigators asked Kavanaugh about the new complaint during a call on Tuesday between Kavanaugh and committee staff, NBC News reported.

When asked about the allegation, contained in an anonymous letter sent to a GOP senator, Kavanaugh responded, “we’re dealing with an anonymous letter about an anonymous person and an anonymous friend. It’s ridiculous. Total twilight zone. And no, I’ve never done anything like that.”