Four San Diego State University fraternity members pleaded not guilty Monday to criminal charges stemming from a skit that allegedly involved intentionally setting one of the defendants on fire, causing him to suffer third-degree burns.

Four members of San Diego State University (SDSU)’s Phi Kappa Psi fraternity have pleaded not guilty to criminal charges relating to a stunt that allegedly involved deliberately setting one of its new members, known as a pledge, on fire, causing him to suffer third-degree burns.

Four members of a San Diego State fraternity allegedly gave a pledge third-degree burns as part of a hazing ritual that left the young man in the hospital for weeks.