Two of the leaders of Harvard University’s Center for Middle Eastern Studies, the director and associate director, will be leaving their positions, according to two professors with direct knowledge of the moves.

The department had been under criticism from alumni that it had an anti-Israel bias, and the university more broadly has been under intense pressure from the federal government to address accusations of antisemitism on campus.

The director, Cemal Kafadar, a professor of Turkish studies, and the associate director, Rosie Bsheer, a historian of the Middle East, did not respond to messages seeking comment on Friday.

The news was first reported by The Harvard Crimson,betef.com the student newspaper. A spokesman for the Harvard Faculty of Arts and Sciences, James Chisholm, declined to comment, saying only that the matter was a personnel matter.

The data suggests that some of the tools used to combat opioid overdoses, such as naloxone, the overdose-reversing medication, were having a significant impact. But researchers and federal and state health officials have puzzled over the exact reasons for the decrease, including why overdoses have fallen so much in recent months.

David Cutler, the interim dean of Social Science, announced in an email on Wednesday obtained by The New York Times that Dr. Kafadar would be stepping down from his post at the end of the academic year.

Dr. Cutler did not respond to a message late Friday.

Faculty members who have spoken with both professors say each believe they were forced out of their posts.

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