Descendants star Cameron Boyce has died at 20 years of age.

The young star died in his sleep on July 7 in Studio City, Los Angeles. The 20-year-old had suffered a seizure.

A family spokesman said: "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."

Boyce played Carlos, son of Cruella de Vil, in the Disney Channel hit series. He was one of the four main characters.

The other leading characters are played by Sofia Carson, Dove Cameron and Booboo Stewart.

Boyce started his career as a nine-year-old in a horror film called Mirrors. He then featured in a Shia LaBeouf movie, Eagle Eye, but made his name when he joined the Disney Channel's TV show, Jessie.

Boyce also starred in Grown Ups, where he played the son of Adam Sandler's character.

The third instalment in the global hit the Descendants franchise is due to be premiered on Friday, August 2 (8:00 p.m. EDT/PDT), on Disney Channel and DisneyNOW.

Filming of the US musical TV movie wrapped up on July 18 2018.

The film is bound to be a huge success as Descendants 2 garnered 21 million viewers in the US, and over 1.3 million in the UK.

Globally, Descendants 2 has been viewed over 71.5 million times across 159 countries. Its soundtrack landed in the Top 10 on the Billboard 200.

A Disney spokesperson said of Boyce "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."