NEW BRUNSWICK -- One of Rutgers University's fraternities has been ordered to "cease and desist" holding parties and other social events as campus officials investigate allegations the group broke school rules.

Sigma Chi, which has a fraternity house on Hardenberg Street in New Brunswick, are not permitted to hold any events under the order, Rutgers officials said Friday. The fraternity traditionally runs the campus' popular Derby Days, a multi-day charity fundraising event held in November.

"The Office of Student Conduct is investigating Sigma Chi for potential violations of university policy. The university has issued a Cease and Desist Order while the investigation is taking place. An organization cannot hold events while under a Cease and Desist Order," Rutgers officials said in a statement.

A Rutgers spokesman did not immediately respond to questions about what policies the fraternity is accused of violating or how long the organization has been under investigation.

Officials with the national Sigma Chi Fraternity headquarters in Illinois did not respond to requests to comment.

Huge thanks to @CoachChrisAsh for coming by tonight! pic.twitter.com/5W1XJ3y1Sf — Rutgers Sigma Chi (@RutgersSigmaChi) April 12, 2017

Sigma Chi is one of nearly 40 recognized Greek chapters that make up Rutgers' Interfraternity Council.

Two years ago, Rutgers banned all fraternity and sorority parties for the spring semester after several alcohol-related incidents on campus. That ban was lifted at the start of the 2015-2016 school year.

Sigma Chi reported the group raised more than $300,000 for a children's charity last November during during its annual Derby Days event at Rutgers, which includes a lip-synching competition and other fundraising contests for fraternities and sororities.

Kelly Heyboer may be reached at kheyboer@njadvancemedia.com. Follow her on Twitter @KellyHeyboer. Find her at KellyHeyboerReporter on Facebook.