As a video circulated online Wednesday showing what appeared to be a sexual hazing ritual at an Indiana University fraternity, some who saw it shrugged. Others thought it was funny, tweeting “LOL” and “LMAO.”Some, however, thought it was rape.On Wednesday night, the university weighed in, announcing via Twitter that it was suspending Alpha Tau Omega “immediately, pending investigation into hazing allegations.” The fraternity did not respond to requests for comment from the Post and other news organizations.The video, which still could be found on YouTube, Twitter and other websites on Thursday morning, appears to capture a fraternity hazing party.