CONCORD, New Hampshire (AP) — A Dartmouth College fraternity that partly inspired the 1978 movie "Animal House" has been accused of branding new members while under suspension last fall.

Alpha Delta has a significant record of disciplinary violations, including hazing, serving alcohol to minors and hosting unregistered parties. College spokesman Justin Anderson said the recent allegations, first reported by the website Gawker, involve incidents that happened last fall, when the fraternity was suspended for previous policy violations.

Attorney George Ostler said Wednesday that the fraternity acknowledges that a small group of members voluntarily chose to get body brands, but said the practice was never a condition of membership and has since stopped.

College spokesman Justin Anderson declined to discuss details of the allegations.

After being on probation for most of the previous three years, the fraternity was suspended in October for hosting an unregistered party for about 70 people in August and for a March 2014 party that featured rum, whiskey and other liquor without having a designated server or someone checking IDs.

That suspension was supposed to end March 29, but Anderson said Dartmouth is extending it and considering harsher punishment, including permanent removal of the fraternity, if the allegations are founded.

The investigation comes amid increased scrutiny of fraternities as colleges nationwide grapple with issues of high-risk drinking and sexual assault. At Penn State, police are investigating allegations that members of Kappa Delta Rho used a private Facebook page to post photos of nude and partly nude women, some apparently asleep or passed out. At the University of Oklahoma, a fraternity was shut down when members were caught on video singing a racist song.

At Dartmouth, two students were seriously injured when they fell off Alpha Delta's roof in 2011, and the fraternity was indicted in 2013 on two charges of providing alcohol to minors. Under an agreement with a judge, members were ordered to perform community service, pay fines, register any gathering involving more than 10 nonmembers and alcohol and appoint a "risk manager" for the house. Also that year, the fraternity apologized after throwing a Bloods and Crips-themed party. Members did not immediately respond to emails requesting comment Wednesday.