The 2016 Tony Awards will be dedicated to the victims of the mass shooting that occurred early Sunday at a gay club in Orlando.

“Our hearts are heavy for the unimaginable tragedy that happened last night in Orlando,” the show’s official account tweeted. “Our thoughts are with the families and friends of those affected. The Tony Awards dedicate tonight's ceremony to them.”

The shooting, which occurred at Pulse nightclub, left at least 50 people dead and 53 hospitalized, according to officials. It is the worst mass shooting in American history.

The Tony Awards is set to air Sunday night at 8 on CBS.