The animal theme park SeaWorld has acknowledged that it sent an employee to pose as an animal rights activist—nearly six months after the group PETA, People for the Ethical Treatment of Animals, accused the SeaWorld employee of spying. Writing in a blog post on Thursday, SeaWorld’s chief executive Joel Manby said that the board has “directed that the company’s management team end a practice in which certain employees posed as animal rights activists.” SeaWorld also acknowledged that the employee, Paul McComb, has returned to work. According to PETA, McComb took part in numerous PETA protests against SeaWorld while undercover and repeatedly used social media in an effort to incite other activists, stating that it’s time to “grab pitchforks and torches” and time to “burn SeaWorld to the ground.”