Top U.S. law firm Davis Polk announced in an internal email that it had rescinded letters of employment for three law students at Harvard and Columbia universities who signed on to organizational statements about Israel, one of the latest responses to open letters from university groups about the Israel-Hamas conflict that have roiled university donors, employers, alumni and students.

“These statements are simply contrary to our firm’s values and we thus concluded that rescinding these offers was appropriate in upholding our responsibility to provide a safe and inclusive work environment for all Davis Polk employees,” said the email, signed by Neil Barr.

Small-business lawyer Joseph Gerstel posted a screenshot of the email Tuesday on LinkedIn. A Davis Polk representative confirmed it as authentic.

Barr went on to write, “At this time, we remain in dialogue with two of these students to ensure that any further color being offered to us by these students is considered.”