Over the past year, Meghan Markle’s estranged half-sister Samantha Markle has been causing some serious problems for her, as she has been bashing the royal left and right. Now, her actions have reportedly landed her on a “fixated persons” list at Scotland Yard.

“Someone like Samantha presents a risk rather than a threat,” a source with the police force explained. “She is not committing criminal offences, but she is causing concerns for the royal family.”

“There is big potential for some major embarrassment for the royals,” the source added. “Samantha could make a scene and create headlines with her actions — and let’s face it, she’s kind of already done that.”

Samantha has repeatedly publicly attacked Meghan ever since she was not invited to her wedding to Prince Harry back in May. Back in October, Samantha slew to the United Kingdom and was even spotted outside Kensington Palace. Security sources say that Samantha’s “pattern of unwanted and persistent behavior” was undoubtedly discussed by Meghan and her protection officers “during briefings.”

Samantha, who lives in Florida, responded to the reports about the fixated post list on Twitter.

“This is ridiculous as I’m in an electric wheelchair and I live on a different continent LOL and advocating for doing the right thing by our dad is hardly fixation,” Samantha wrote. “Stop your lying nonsense or be sued.”

Though Samantha has said at times that she wants to end the rift with Meghan and simply wants to reunite the royal with their father, she has quickly followed these moments of calling for peace with more attacks on Meghan. Samantha has gone so far as to pledge to release an anti-Meghan memoir called “Diary Princess Pushy’s Sister” to coincide with the birth of the royal’s child in the spring, which makes it hard to believe she has any intention of making peace with her sister at all.

It should be noted that when asked for comment, Kensington Palace responded to the Scotland Yard report by saying, “We do not confirm the identity of any person who may or may not be of interest to the police unless that person has been charged.”