Andrew Kreisberg has been fired from his role as executive producer on superhero dramas “The Flash,” “Arrow,” “Supergirl” and “Legends of Tomorrow” amid multiple allegations of sexual harassment.

“After a thorough investigation, Warner Bros. Television Group has terminated Andrew Kreisberg’s employment, effective immediately,” said the studio in a statement. “Greg Berlanti will assume additional responsibilities on both “The Flash,” where he will work closely with executive producer/co-showrunner Todd Helbing, and “Supergirl,” where he will work closely with executive producers/co-showrunners Robert Rovner and Jessica Queller. We remain committed to providing a safe working environment for our employees and everyone involved in our productions.”

Greg Berlanti and Sarah Schechter, whose Berlanti Productions produces the shows with Warner Bros., said in a statement, “Warner Bros. Television Group recently concluded its investigation into the allegations against Andrew Kreisberg. We encouraged and supported this investigation, we believe and support the individuals who came forward, and we agree with the studio’s decision. Nothing is more important to us than the safety and well-being of all our colleagues — coworkers, crew and staff alike.”

Warner Bros. Television, which produces the DC Comics-inspired dramas for the CW, suspended Kreisberg Nov. 10 from both productions and launched an investigation into multiple claims of sexual harassment on the series. Berlanti and Schechter met with the casts and crews of their series in the days after the allegations surfaced in a Variety report.

In a piece published Nov. 10 at the time of Kreisberg’s suspension, 19 women and men who worked on the Warner Bros.-Berlanti shows described being subjected to or witnessing incidents similar incidents of inappropriate touching and endemic sexual harassment. The sources spoke with Variety on condition on anonymity. Kreisberg has denied the allegations.

According to sources who either witnessed Kreisberg’s alleged behavior or were subjected to it, Kreisberg frequently touched people without their permission, asked for massages from uncomfortable female staff members, and kissed women without asking. Sources cited a constant stream of sexualized comments from Kreisberg about women’s appearances, their clothes, and their perceived desirability.

The four “Arrow”-verse series make up a significant chunk of the CW’s primetime schedule, which is smaller than other broadcast networks at 10 nights a week. “The Flash” has been the network’s highest rated show since it premiered in 2014.