( CNN ) Months after a troublesome Rolling Stone article detailed rape claims on campus , the University of Virginia has reinstated its chapter of the Phi Kappa Psi fraternity . The decision came after Charlottesville police told UVA `` that their investigation has not revealed any substantive basis to confirm that the allegations raised in the Rolling Stone article occurred at Phi Kappa Psi , '' the university said in a statement . `` We welcome Phi Kappa Psi , and we look forward to working with all fraternities and sororities in enhancing and promoting a safe environment for all , '' UVA President Teresa A. Sullivan said . In November , Rolling Stone published `` A Rape on Campus '' featuring a woman identified only as Jackie . In the article , Jackie said she was brutally raped by seven men at the Phi Kappa Psi fraternity house during a party her freshman year . The article sparked international outrage and put UVA in the spotlight on the issue of campus sexual assault . UVA shut down Greek social life on November 21 , two days after the article was published . But there were problems with the reporting . Within days , critics began to question some of the story 's details , as well as Rolling Stone 's decision not to contact the alleged attackers . The Washington Post , CNN and other news outlets followed up , identifying a number of contradictions and discrepancies . For example , two of Jackie 's friends told CNN that numerous details of the alleged attack described in Rolling Stone were entirely different from what Jackie told them that night . And they said that , while it seemed clear that she had been traumatized , they saw no injuries consistent with an attack as vicious as the article describes . Rolling Stone apologized , acknowledging discrepancies and admitting that its writer had not contacted the man who allegedly orchestrated the attack on Jackie . The magazine also said the writer did n't contact any of the men that Jackie claimed participated in the attack , for fear that they would retaliate against her . `` We published the article with the firm belief that it was accurate , '' the magazine said . `` Given all of these reports , however , we have come to the conclusion that we were mistaken in honoring Jackie 's request to not contact the alleged assaulters to get their account . '' The fraternity 's chapter president , Stephen Scipione , said there is still `` an opportunity to move forward with important safety improvements . '' `` This has prompted us to take a closer look at ourselves and what role organizations like ours may play in this problem , '' Scipione said in a statement . `` It 's opened all of our eyes to the problem of sexual assault . '' Last week , the university reinstated Greek social life and announced new rules fraternities must follow if they want to throw a party . Among them : No pre-mixed drinks . Security at the doors . And sober brothers at every event , guarding the stairs and with key access to each room . CNN 's Sara Ganim , Leigh Remizowski and Adam Levine contributed to this report .
The University of Virginia reinstates its Phi Kappa Psi fraternity chapter . Police have not been able to confirm rape allegations detailed in Rolling Stone .