Meghan Markle's half sister Samantha 'turned away from Kensington Palace gates'

Meghan Markle's half sister was turned away from the gates of Kensington Palace after arriving unannounced to see the Duchess.

Samantha Markle, 53, presented herself at a security checkpoint at the Duke and Duchess of Sussex's London residence to confront her half sister.

But she was stopped at security and following a conversation with a guard, simply handed him a letter before leaving.

After being pictured handing over the letter, she wrote online: "Everybody would love to know what’s in that letter."

Pictures show Samantha, who suffers from MS, being pushed in a wheelchair up to the palace gate.

After being turned away she went to a nearby vendor where she purchased masks of Prince Harry and Meghan.

A source told the Mirror the incident was 'a sad sight.'

Samantha has called Meghan, 37 'cold' after their father Thomas Markle was not invited to the Royal Wedding. He

In May, Thomas, 74, was exposed for selling pictures of himself to the paparazzi ahead of the wedding.

He did not walk her down the aisle after suffering a heart attack following the scandal.

Kensington Palace declined to comment.