Four members of a San Diego State University fraternity have been charged after a 19-year-old pledge for their house was set on fire during a party, the District Attorney’s Office said. The members of Phi Kappa Psi were charged with at least one felony each,

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.

The defendants, who were active members of the Phi Kappa Psi fraternity, allegedly hosted a party at their fraternity house on Feb. 17 of last year.