India, Oct. 17 -- Nine US universities, including Harvard, Yale and Stanford, are under investigation for potential fraud involving the J-1 exchange visitor visa program, the US Department of Labor's inspector general Anthony D'Esposito has said, warning that more investigations could follow.

"Nine universities under investigation for potential J-1 visa fraud-more to come," D'Esposito wrote in a post on X under the hashtag #FraudFriday. He said companies had been suspended, warrants executed and subpoenas issued as part of the wider enforcement drive.

The Department of Labor's Office of Inspector General announced the university investigations on October 9, confirming that subpoenas had been served on all nine institutions.

The univers...