Duchess of Sussex Meghan Markle‘s half-sister Samantha Markle was turned away by security at Kensington Palace on Saturday after she reportedly showed up without an invitation.

According to Us Weekly, 53-year-old Samantha Markle was seen arriving at her 37-year-old half-sister’s home with Prince Harry in London. The older Markle sister was reportedly being pushed in a wheelchair, as she suffers from multiple sclerosis. She also was spotted handing a letter in an envelope to one of the guards at Kensington Palace.

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Samantha Markle is not the only one of the princess’s relatives to make a scene in recent months. Just days before Meghan — a former model and actress — was married to Prince Harry, 34, in May, her father Thomas Markle was caught in a scandal when it was discovered he was staging paparazzi pictures. He then had heart surgery and was unable to attend the royal wedding.

Kensington Palace’s Twitter account posted on Thursday that the Duke and Duchess of Sussex are set to go on a multi-nation trip that includes visits to Australia, Fiji and New Zealand.