Meghan Markle's sister on 'Fixated Persons List'?

Seems like Samantha Markle's outspoken words about her half-sister Meghan Markle have landed her in trouble.

According to reports by US Weekly, the estranged half-sister of Duchess of Sussex is on a "fixated persons list" with Scotland Yard in the UK for repeatedly criticising the former 'Suits' star for her marriage into the royal family.

Samantha has been flagged by the police royalty and specialist protection unit for taking a swipe at Meghan and Prince Harry in several interviews and tweets. She is also said to pose a "reputational risk" to the royal family.

"Someone like Samantha presents a risk rather than a threat. She is not committing criminal offences, but she is causing concerns for the royal family," said a Scotland Yard source.

Before her unexpected appearance outside Kensington Palace, Samantha also slammed the Duchess of Sussex's Christmas card.

The 53-year-old, who was not invited to the couple's wedding at Windsor Castle, had told Meghan that it was time to "end the rift" with their father, Thomas Markle.