Former NCIS actress Pauley Perrette has made some serious allegations recently regarding her NCIS co-star and executive producer, Mark Harmon. Perrette, who played the goth forensic scientist Abby Sciuto for fifteen years insists he “physically assaulted” her while working on the popular series.

In October 2017, the primetime star confirmed she’d be saying goodbye to playing Abby, writing, “No, my network and show are not mad at me. [Leaving] was a decision made last year.” She said that it was the “right time” to go. So, after leaving in April 2018, Perrette stunned her fans when she wrote about violence that had occurred on the NCIS set. Her tweets have since been deleted, but here’s what they said:

“I refused to go low, that’s why I’ve never told publicly what happened. But there are tabloid articles out there that are telling total lies about me.” Just getting warmed up, she continued, “Maybe I’m wrong for not ‘spilling the beans.’ Telling the story, THE TRUTH. I feel I have to protect my crew, jobs and so many people … Just know, I’m trying to do the right thing, but maybe silence isn’t the right thing about crime.” On a roll, she persisted with her mysterious, if not bizarre, tweets: “There is a ‘machine’ keeping me silent, and feeding FALSE stories about me…No morals, no obligation to truth, and I’m just left here, reading the lies, trying to protect my crew. Trying to remain calm. He did it.” And then: “I’ve been supporting anti-bullying programs forever because it was ME! If it’s school or work, that you’re required to go to? It’s horrifying. I left. Multiple Physical Assaults. I REALLY get it now. Stay safe. Nothing is worth your safety. Tell someone.”

While many people were very concerned about what allegedly terrible incidents she’d endured, her cryptic message led others to believe she wasn’t being completely honest. Fans continue to debate if she exaggerated her claims, especially considering no police report was ever filed.

However, in 2016 Harmon’s dog allegedly attacked a crew member while on the NCIS set. According to reports, it was a rescue, untrained, and Perrette complained about it being allowed back on set afterward. For this reason, many assumed she’d been referring to Harmon as the attacker although he was never specifically named.

But just days ago, Perrette again brought up the topic of assaults that occurred during her days on NCIS—and this time, she named Harmon. In a new series of tweets, the 50-year-old actress begged her fans to stop asking her to return to the show, and she promoted her present show Broke. She tweeted, “I am terrified of Harmon and him attacking me. I have nightmares about it. I have a new show that is SAFE AND HAPPY! You’ll love it!”

Next, posting graphic pictures of an NCIS crew member with stitches around the eyes, she wrote, “I fought like hell to keep it from happening again! To protect my crew! And then I was physically assaulted for saying no and I lost my job.” She claimed Mark Harmon “body checked her on set” in an alleged attempt to intimidate her “after the dog fiasco.”

For its part, CBS issued a statement: “Over a year ago, Pauley came to us with a workplace concern. We took the matter seriously and worked to find a resolution.”

If Harmon is being falsely accused, people are wondering why he is not responding publicly to such serious allegations. However, many of his loyal fans suggest he’s essentially diffusing the situation by avoiding talking about Perrette’s tweets. Others wonder if he’s under some kind of a gag order by the network—especially considering the highly rated show routinely pulls in 12 million viewers each week. In fact, NCIS is the most-watched scripted show on television, making Harmon prime-time gold. On the other hand, if he is guilty, people wonder if perhaps he’s taking his time to formulate a response. And the network would be in a position to take action and hold him accountable.

In April 2019, NCIS renewed for a 17th season, and the show will premiere in September 2019—with Mark still at the helm. As of the moment, many fans are expressing how hard it is to imagine Harmon behaving in the manner described, and they’re waiting to hear his side of the story.

This all has come as a shock to NCIS fans, as Harmon and Perrette’s characters had such a sweet relationship. On top of it, Perrette’s popularity is consistently sky high. Not long ago, her Q Score tied her with the other beloved megastars Tom Hanks and Morgan Freeman, and most recently, she was given the highest score of all current female TV actresses. Also a fan favorite, in 2017, Harmon won a People’s Choice Award for Favorite TV Drama Actor—not to mention, his personal qualities seem quite admirable; he even once pulled a passenger from a car that was ablaze due to a car accident.

For the record, Perrette is a dog lover who has three dogs of her own. And she’s involved with a charity called the Amanda Foundation which is an animal rescue.