77-year-old Markle is being treated in hospital.
Meghan Markle's father has reportedly suffered a 'major stroke'.
According to TMZ, Thomas Markle was rushed to the hospital after displaying stroke-like symptoms.
The medical emergency occurred just days before he was due to fly to England.
It is believed he was taken to a hospital in California on Monday night.
He could not speak and had to write his symptoms down on paper for paramedics.
77-year-old Markle was set to travel to England for the Queen's Platinum Jubilee.
He was not invited by the royal family but wanted to celebrate in London.
According to Dan Wootton, Mr. Markle was due to join him for the Jubilee. It is believed he was going to appear on the journalist's show.
The Daily Mail writer also claims doctors were concerned about his blood pressure before the stroke occurred.
https://twitter.com/MikeSington/status/1529175629177835521
Speaking about her father's medical emergency, Samantha Markle asked the public to respect their privacy.
"My father is recovering in hospital. We ask for privacy for the family, for his health and wellbeing.
"He just needs peace and rest. Godspeed. We are praying. He just needs some rest.
"It's a travesty how much he's been tortured and how much he's had to go through thanks to my sister's disregard the past few years. That is unforgivable," she added.
Meghan and her father have had a strained relationship for years. She also said she has only ever met her half-sister Samantha a handful of times.
Her father did not attend her 2018 wedding to Prince Harry because he allegedly suffered 'two heart attacks'.
He has also not met Prince Harry and Meghan's children, Archie and Lilibet.
