Cristiano Ronaldo and his partner have announced that one of their newborn twins has died.

Writing on Instagram, they said they are “devastated” at the loss of their son and called it the “greatest pain that any parents can feel”.

“It is with deepest sadness we have to announce that our baby boy has passed away,” said the message on Sunday evening.

“It is the greatest pain that any parents can feel.

“Only the birth of our baby girl gives us the strength to live this moment with some hope and happiness.”

The post, signed by Ronaldo and partner Georgina Rodriguez, continued: “We would like to thank the doctors and nurses for all their expert care and support.

“We are all devastated at this loss and we kindly ask for privacy at this very difficult time.

“Our baby boy, you are our angel. We will always love you.”

Fans of the Portuguese player have reacted by posting thousands of message of support and condolence.

Ronaldo already has a four-year-old daughter with Ms Rodriguez, as well as several other children.

The Manchester United star played on Saturday against Norwich, scoring his second hat trick of the season.