Meghan Markle and Prince Harry have been left heartbroken after their friend Kelly McKee Zajfen made the tragic announcement that her son George died after being found "unresponsive" at home.
Taking to Instagram, Kelly wrote, "My world is shattered into a million pieces. I have little ability to breathe. Walk. Function. Sit. Stand. You were the light of my life.
She continued, "Your smile made the room so bright and your heart was the most perfect and sweetest."
"You left this Earth and left behind so many people who loved you. I don't know how I'm able to go on. How I can function. How I can be the light and have joy ever again but I'm going to try. Try hard for your beautiful twin sister."
George's twin sister Lily has a cardiac condition which means she requires a pacemaker.
"George had no heart problems that they were aware of. Nobody knows what happened right now," an anonymous friend told Daily Mail, adding the cause of death remains a mystery.
"They’re still waiting on the autopsy results," they added. "I don’t even think she (Kelly) knows right now. He was just found unresponsive. It’s hard to believe that it’s him when, of course, it’s his sister who has had a heart condition since she was two years old."
Kelly has been friends with Meghan for years after meeting through the Duchess of Sussex's ex-husband Trevor Engelson, according to The Sun.
A GoFundMe page was set up in George's honour following his sudden death, with a donation of A$7150 coming through from Meghan and Harry under the name "Archie & Lilibet".
Meghan's ex-husband and his wife also donated.
The money that is raised will be donated to Children's Hospital Los Angeles and has raised almost A$85,000.
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