A Yale school-led investigation over a sexual-misconduct allegation against former men's basketball captain Jack Montague was what led to his dismissal from the Ivy League school, CNN reported on Thursday, citing an unnamed source.

Montague left the team and school last month amid questionable circumstances, though his family has said he was expelled.

Montague says he engaged in a consensual sexual relationship with a fellow student in 2014 before, a year later, being called to appear before the school's University-Wide Committee on Sexual Misconduct, CNN reported, citing a source close to the former player.

The school has declined to provide specifics regarding Montague's status beyond that he would not return.

"Information pertaining to a student's withdrawal from the university is maintained as part of the student's confidential educational record," a previously released university statement said. "The university does not make distinctions in treating as confidential the different circumstances under which a student may be withdrawn from Yale. The governing principle is that all student educational matters, including disciplinary matters, are a private educational concern between the student and Yale; the university therefore does not disclose the details of a student's status."

The Yale men's basketball team issued an apology Wednesday in the wake of a controversy that surfaced after players wore warm-up T-shirts in support of Montague.

Yale players, before a nationally televised game two weeks ago against Harvard, donned practice shirts that featured Montague's nickname and jersey number.

Montague, the team's fourth-leading scorer with 9.7 points per game, has not played since scoring 16 points in Yale's 83-52 win over Cornell on Feb. 6.

Despite Montague's absence, Yale won the Ivy League title, advancing to the NCAA tournament for the first time in 54 years.

According to reports, police say Montague does not face criminal charges in New Haven and that there is no active investigation involving him.

Montague's father told the New Haven Register he relished the opportunity to disclose the reason for his son's dismissal from Yale.

"Soon enough," Jim Montague said. "I'd love to tell the other side of the story. It's ridiculous why he's expelled."

Information from ESPN's Myron Medcalf was used in this report.