Angus Cloud, who starred in HBO's hit series Euphoria, has died aged 25.

Axar.az reports that Cloud, who played drug dealer Fezco "Fez" O'Neill in the teen drama, died on Monday at his family home in Oakland, California, said a publicist.

"It is with the heaviest heart that we had to say goodbye to an incredible human today," said the Cloud family.

Cloud attended his father's funeral in Ireland last week and, according to his family, "intensely struggled with this loss".

There was some comfort in knowing he was now "reunited with his dad, who was his best friend", they said in a statement.

"Angus was open about his battle with mental health and we hope that his passing can be a reminder to others that they are not alone and should not fight this on their own in silence," it said.