The FBI on Sunday interviewed Brett Kavanaugh accuser Deborah Ramirez as part of its extended probe into the sex-assault allegations against the US Supreme Court nominee, according to reports.

Ramirez spent several hours with FBI agents and repeated her claim that Kavanaugh exposed himself to her during a college party at Yale University years ago, CNN said. She also provided the names of people she says witnessed the sexual misconduct.

Kavanaugh has vehemently denied the allegation, as well as others against him.

President Trump asked the FBI on Friday to open the probe and said a day later that the investigators will have “free rein” during it.

But White House counselor Kellyanne Conway said Sunday that the investigation, capped at a week, wouldn’t be a “fishing expedition’’ — and sources told CNN and NBC that the White House is directing the probe and has given the FBI the names of only four individuals to interview, at least for now.

The FBI will only question people the White House instructs it to speak with, former FBI Assistant Director Ron Hosko noted to CBS.

Either way, the probe will not investigate broader claims that Kavanaugh drank to the point of blacking out as a young man, nor some of his high-school yearbook entries that allegedly indicated crude attitudes toward women, both CNN and NBC reported.

In addition to Ramirez, the FBI is slated to speak with Kavanaugh’s Georgetown Prep buddies Mark Judge and P.J. Smyth and old female pal Leland Keyser, according to the reports.

Kavanaugh’s first accuser, Christine Blasey Ford, has said the trio were at a high-school party where, she alleges, he nearly raped her about 36 years ago. Judge was in the room and watched the attack, she testified.

All three have said they don’t remember the get-together, according to their lawyers. Keyser added that she never met Kavanaugh, although she believes Ford’s accusations.

Ford testified about the alleged attack before the Senate Judiciary Committee on Thursday, and Kavanaugh spoke, too.

He and Ford may not be interviewed by the FBI because they already gave their sworn testimony, sources told CNN.

That did not appear to sit well with Ford’s lawyer, Debra Katz.

“We have not heard from the FBI, despite repeated efforts to speak with them,’’ she told the New York Times over the weekend.

Another Kavanaugh accuser, Julie Swetnick, has not been contacted by the FBI, according to her lawyer, Michael Avenatti. Swetnick claims that Kavanaugh helped “spike” the “punch’’ at high-school parties where drunken girls were gang-raped.

It was revealed Sunday that Swetnick has been involved in a litany of legal disputes over the past 25 years, including a former employer accusing her of lying about her education and job history on an employment application.

Avenatti says the employer’s claim was “completely bogus, which is why it was dismissed almost immediately.”

Another accuser claimed that Kavanaugh attacked a woman in the 1980s but then recanted, prompting US Sen. Chuck Grassley (R-Iowa) to ask the FBI to probe him for possible criminal wrong-doing.

Sen. Diane Feinstein (D-Ca.) sent a letter to White House counsel Don McGahn and FBI director Chris Wray on Sunday demanding to know the full scope of the investigation.

“Given the seriousness of the allegations before the Senate, I am writing to request that you provide the Senate Judiciary Committee with a copy of the written directive sent by the White House to the FBI,” she wrote.

President Trump on Sunday tweeted that the Democrats’ protests over the FBI probe’s scope were just a ploy.

“Wow! Just starting to hear the Democrats, who are only thinking Obstruct and Delay, are starting to put out the word that the ‘time’ and ‘scope’ of FBI looking into Judge Kavanaugh and witnesses is not enough. Hello!,” he wrote. “For them, it will never be enough – stay tuned and watch!”

But US Sen. Mazie Hirono (D-Hawaii), who sits on the Senate Judiciary Committee, told ABC’s “This Week,’’ “To limit the FBI as to the scope and who they’re going to question, that really, I don’t want to use the word farce, but that’s not the kind of investigation all of us are expecting the FBI to conduct.’’

With Post Wire Services