American actor Cameron Boyce has died at the age of 20, his family has confirmed.
The Disney star, known for his roles in the Descendants franchise and the TV show Jessie, passed away in his sleep after suffering a seizure, which was a result of an "ongoing medical condition".
A spokesperson confirmed the news in a statement on behalf of the Boyce family, which read: "It is with a profoundly heavy heart that we report that this morning we lost Cameron.
"He passed away in his sleep due to a seizure which was a result of an ongoing medical condition for which he was being treated.
"The world is now undoubtedly without one of its brightest lights, but his spirit will live on through the kindness and compassion of all who knew and loved him."
They added: "We are utterly heartbroken and ask for privacy during this immensely difficult time as we grieve the loss of our precious son and brother."

Boyce was born in Los Angeles and made his acting debut aged nine in the horror film Mirrors in 2008.
His breakthrough role was on the Disney television show Jessie in which he played Luke Ross, one of the leading characters. It ran for four season from 2011 to 2015.
He became best known for playing Carlos, son of villain Cruella De Vil, in 2015's Disney TV movie Descendants and the sequel in 2017. He also starred in the Adam Sandler films Grown Ups and Grown Ups 2.

Descendants director Kenny Ortega paid tribute to the late actor on Instagram.
"Cameron brought love, laughter and compassion with him everyday I was in his presence," he wrote.
"His talent, immeasurable. His kindness and generosity, overflowing. It has been an indescribable honor and pleasure to know and work with him. I will see you again in all things loving and beautiful my friend.
"I will search the stars for your light. Rest In Peace Cam."
Boyce's Grown Ups co-star Adam Sandler penned an emotional tribute to the late actor.
"Too young. Too sweet. Too funny. Just the nicest, most talented, and most decent kid around," Sandler wrote.
"Loved that kid. Cared so much about his family. Cared so much about the world. Thank you, Cameron, for all you gave to us. So much more was on the way.
"All our hearts are broken. Thinking of your amazing family and sending our deepest condolences."
A Disney Channel spokesperson said in a statement: "From a young age, Cameron Boyce dreamed of sharing his extraordinary artistic talents with the world.
"He was an incredibly talented performer, a remarkably caring and thoughtful person and, above all else, he was a loving and dedicated son, brother, grandson and friend.
"We offer our deepest condolences to his family, castmates and colleagues and join his many millions of fans in grieving his untimely passing. He will be dearly missed."
Tributes have been paid to the late actor on social media.
This is awful. I'm heartbroken for his family, friends, and everyone who was impacted by him. He was so young. I hope everyone gets the space they need right now. 💔 https://t.co/mh1aeVJPmW
— Kevin McHale (@druidDUDE) July 7, 2019
Cameron Boyce thank you for giving me and my bother and millions of others amazing childhood memories, you will honestly never be forgotten, rest in peace buddy 🖤
— hrvy (@HRVY) July 7, 2019
rip cameron boyce :( send love. you never know what could happen. tell those you love that you appreciate them. I pray for those close to him
— Jessie Paege (@jessiepaege) July 7, 2019
Rest in heaven Cameron Boyce.
— Rome Flynn (@RomeTrumain) July 7, 2019
Such a delightful soul
Prayers to his family.
man. this really hurts. met Cam Boyce a few times & he showed nothing but class. such a nice young man gone way too soon. rest in paradise, you will be so dearly missed by us all. 💔
— Cameron Fuller (@CameronFuller) July 7, 2019
So saddened to hear about the passing of such a young talented individual. I didn't know him personally but he seemed like a great person. RIP Cameron Boyce. Some things don’t seem fair.. this pains me 😔♥️
— Grayson Dolan (@GraysonDolan) July 7, 2019
i am absolutely heartbroken, i don't want this to be true. RIP cameron boyce 💙 we love you legend
— Ricky Dillon (@RickyPDillon) July 7, 2019
Hurt to hear about Cameron Boyce. The kid was only 20 and something special. 😔
— Khleo Thomas (@KhleoThomas) July 7, 2019