BERKELEY — In an explosive admission, fired UC Berkeley assistant basketball coach Yann Hufnagel told a campus investigator that he tried to lure a female reporter up to his apartment for sex after a game last year and later joked in a text about having her over for sex with him and his friend.

The new details emerged Tuesday in investigative reports the university released into the sexual harassment case that cost Hufnagel his job, just days before the Bears tip off in the NCAA basketball tournament. (UC Berkeley also confirmed Wednesday that it’s reviewing head coach Cuonzo Martin to “dispel any doubts” about whether he responded properly to complaints made by the reporter. Read more.)

The campus investigator asked Hufnagel about the reporter’s accusation that he pressured her for sex after convincing her to drive back with him from a downtown brewpub and closing the parking garage door behind them: “With all candor,” he responded, “I was trying to trick her into going upstairs.”

The reporter told UC Berkeley that after she rebuffed the coach’s advances, he denied her access to the information she needed to cover the team and she eventually lost her job. In the report, Hufnagel disputes that he withheld information from her.

The revelations are part of a growing scandal that marked the third high-profile case of sexual harassment on the UC Berkeley campus in the last five months, and the second in a week.

Hufnagel — who acknowledged to campus investigators his conduct toward the reporter was inappropriate but argued that it didn’t constitute harassment — did not return calls seeking comment. In an interview with ESPN on Monday, he said he was “blindsided” by the findings, and that he planned to hire lawyers to clear his name.

The UC Berkeley investigation, which did not name the reporter or her employer, concluded that Hufnagel’s conduct over a six-month period “was objectively intimidating, hostile, or offensive –repeatedly propositioning Complainant for sex and, in some cases, suggesting that her participation in sex with [Hufnagel] would grant her greater access to parts of the sports world in [Hufnagel’s] control.”

The reporter told investigators she first reported the harassment to Cal’s head basketball coach Cuonzo Martin over the phone on May 22. But while Martin asked Hufnagel to apologize, he didn’t alert campus authorities until July 7, the timeline outlined in the investigation reveals — after the reporter emailed him screenshots of the sexually explicit text messages Hufnagel had sent her.

Martin later told investigators he did not know that the reporter’s complaint about his assistant coach involved sexual harassment — an allegation he would have been required to report.

Hufnagel told investigators he tried to apologize to the reporter in late May, “likely when [Martin] first came to him to reach out to [her] as she had told [Martin] that she was threatening to go to the newspapers,” according to the report.

UC Berkeley did not directly respond to questions about Martin’s response, but said the head coach did not violate university policy.

“Our head coach is one of the highest character individuals not just in college basketball, but period,” said Cal Athletics spokesman Wes Mallette in a prepared statement.

The investigative report includes myriad allegations, including that Hufnagel repeatedly asked the reporter to have a “three-way” with him and a friend of his; in March 2015, when she texted the assistant coach to see if he could help her get into a championship game, he replied with a photo of himself and the friend looking into the camera. He insisted to the investigator it was a joke.

But the most serious allegation against Hufnagel relates to an incident that took place in Hufnagel’s parking garage late one night in early 2015 after a game. The reporter said she suggested meeting for coffee, but that Hufnagel insisted on a bar, so she chose Jupiter, a popular place that also serves food. (She ordered tea — a choice, Hufnagel told the investigator, made him think she was “the lamest girl ever.”)

Although their accounts differed about whose car they drove back to his apartment into the garage and who was driving, the investigator found the reporter’s account “credible that [Hufnagel] repeatedly insisted that she accompany him up to his apartment, even after she declined and while she was closed into Respondent’s parking garage and Respondent was in control of her ability to get out of the garage.”

The university took action Monday to fire Hufnagel when the report was completed. But the revelations come less than week after a lawsuit brought to light the minor sanctions handed to former law school dean Sujit Choudhry after a campus investigation found he had routinely subjected his assistant to unwanted hugs, kisses and caresses.

Choudhry has since stepped down from his post. He remains on the faculty, but UC President Janet Napolitano on Friday ordered UC Berkeley Chancellor Nicholas Dirks to ban him from the campus for the rest of the term.

Also last year, another powerful faculty member — astronomer Geoff Marcy — was allowed to keep his job after a campus investigation found that he sexually harassed students for nearly a decade. Marcy resigned in October after the news caused an international outcry and the majority of his colleagues called for his termination.

The university did not make the chancellor or the athletic director available for comment about the latest case to arise, but Mallette issued a statement on behalf of Cal Athletics, saying it was “not reflective of our program or how we operate.”

“That is why we moved immediately in the direction we did based on the findings of the report,” it said. “Now, we are moving ahead and our focus is on making sure our student-athletes are in a good position as they complete the semester academically and we head into NCAA Tournament play later this week.”

Reporter Jeff Faraudo contributed to this story. Follow Katy Murphy at Twitter.com/katymurphy.