Cornell University has suspended a long-standing fraternity following a report that a man was drugged and sexually assaulted by several men during an off-campus party.

The alleged assault occurred during an event late Oct. 25 or early Oct. 26 at off-campus residence halls affiliated with Greek life at the Ivy League college in Ithaca, New York. According to an alert sent out by the university police department.

Michael Azarian, the fraternity’s executive director, told local media that Chi Phi’s national organization had temporarily suspended its chapter due to the police investigation, adding that the fraternity “will fully cooperate with law enforcement and university officials at this time.”

Chi Phi is considered the oldest fraternity since its founding in 1824 and adheres to its motto of integrity, honor and personal integrity. according to the website.

Fraternity leadership did not immediately respond to a request for comment.

The victim told police Friday that they were sexually assaulted by “several males” and forced to take ketamine and other drugs in the 100 block of Edgemoor Lane, where both Chi Phi and Lambda Chi Alpha fraternities are located.

A spokesperson for Lambda Chi Alpha told The Post that its chapter at Cornell was “NOT involved in the alleged incident.”

“Our community is trying to process last Friday’s crime alert, which included a deeply disturbing report of drug and sexual violence,” said Ryan Lombardi, Cornell vice president for student and campus life. In his message to students, he said:

“We strongly condemn the actions of those responsible for such crimes and will hold anyone identified fully accountable. If you have information that could assist this investigation, we ask that you contact the authorities.”

Police said the investigation is ongoing.

The university declined to comment, and both Cornell and Ithaca police did not immediately respond.