( CNN ) Some of the 100 fraternity brothers of the now-disbanded Sigma Alpha Epsilon chapter at the University of Oklahoma have received death threats after the release of a video in which a racist chant was heard , a lawyer for the chapter 's board said Friday . Attorney Stephen Jones said other members of the former chapter of the fraternity have been physically assaulted , though he would n't go into specifics . Jones told a news conference that he had been retained by the board of trustees -- the alumni advisers for the chapter -- `` to assist them in evaluating certain legal issues and other matters that may impact local chapter of SAE . '' There are no plans right now to sue the university , which shut down the chapter 's house and disbanded the SAE chapter , he said . The national chapter of SAE also revoked the OU chapter 's charter . The school also expelled two members of the fraternity , but Jones said he is not representing them . Jones said the actions on a nine-second video that showed some members yelling a racist chant that included a reference to lynching were inexcusable . There was `` no justification for what occurred . Zero , '' he said . Jones said he is involved to protect the due process and First Amendment rights of members . The fraternity 's national office said it is investigating the incident in the video to see if it needs to take action against any of the students . `` We are committed to following the due diligence and protocols that we have set forth in our fraternity laws , '' the national SAE office said after the news conference , `` as they are designed to enable us to make deliberate , thoughtful decisions that reflect our commitment to our standards and to our members . '' The office also has said it was looking into incidents involving other chapters . `` Several other incidents with chapters or members have been brought to the attention of the headquarters ... and each of those instances will be investigated , '' the national office said in a statement . It said some of the incidents date back more than 20 years . Another chapter of the Sigma Alpha Epsilon fraternity is under fire over alleged racial slurs -- this time in Seattle . University of Washington students are accusing fraternity members of offensive comments during a protest to raise awareness about racism last month . `` People were called monkeys and apes by members of SAE , '' said Maggie Negussie , president of the university 's Black Student Union . SAE 's university chapter denied the allegations , saying an investigation determined the culprits were not members of the fraternity . An investigation into the `` grossly insensitive comments '' is underway , said Denzil J. Suite , the university 's vice president for student life . The university is gathering information to determine who was behind the remarks , but a preliminary report by some students accused the SAE fraternity , according to Suite . `` If and when we can determine what occurred , we will take appropriate steps , '' he said . About 1,000 people were marching across the street from the fraternity house when the incident occurred , Negussie said . She said the marchers opted to ignore the offensive words . `` At that time it was more important to continue marching ... but that is not the only time , '' she said . `` There are many of us who have those stories . '' Negussie also accused the University of Washington fraternity of not allowing black students at its parties . When CNN asked for videos or photos , she said members are reaching out to witnesses . Michael Hickey , president of the fraternity 's university chapter , said the chapter was notified of the protest incident on February 25 -- the same day it happened . `` We were naturally concerned and shocked by these allegations , as we pride ourselves in the diversity of our chapter membership and racism is against the moral ethics of our local and national organization , '' he said in a statement . However , he said , an investigation determined that fraternity members were not behind the insults . The culprits were on a nearby sidewalk and not on the fraternity house property , he said . `` We have determined this due to eyewitness accounts from our members viewing nonmembers of SAE yelling offensive comments on the sidewalk near our chapter house , '' he said . He asked witnesses to come forward and pledged to punish any members found to have been involved . `` We continue to seek any information or eyewitnesses to the incident , '' he said . CNN 's Elise Miller contributed to this report .
National chapter of SAE says it is giving due process to members at University of Oklahoma . The group has been protesting the university's decision not to allow SAE chapters on campus.