Cirque du Soleil performer killed in Las Vegas show By Matt Smith, CNN June 30, 2013 -- Updated 2340 GMT (0740 HKT) The accident reportedly occurred during the battle scene in "Ka," which takes place on a vertical stage. NEW: The accident happened during the show's finale Sarah Guyard was part of the original cast of "Ka" She died during a performance at the MGM Grand in Las Vegas The cause of death had not been determined Sunday, medical examiners said (CNN) -- A performer from the famed troupe Cirque du Soleil died in a weekend accident during a show at a Las Vegas casino, authorities said Sunday. The performer, 31-year-old Sarah Guyard, was pronounced dead shortly before midnight Saturday, the Clark County, Nevada, medical examiner's office told CNN. The cause of death had not been determined Sunday afternoon, the office said. The accident happened during the show's finale, Cirque Du Soleil spokeswoman Renee-Claude Menard told CNN. During the scene, performers are suspended up to 50 feet in the air on lines controlled by wireless remote controls, according to the troupe's website. Guyard, nicknamed "Sassoon," was part of the original cast of "Ka," the long-running Cirque du Soleil show at the MGM Grand hotel and casino, Cirque du Soleil founder Guy Laliberté said in a statement issued Sunday. The show has been canceled indefinitely, and the company is "working with the appropriate authorities and have offered our full cooperation," Laliberté said. We are reminded, with great humility and respect, how extraordinary our artists are each and every night. Our focus now is to support each other as a family, " he said. CNN's Janet DiGiacomo and Douglas Hyde contributed to this report.