Cristiano Ronaldo has announced that he is the father of a baby girl.

Ronaldo posted a photo on Twitter on Sunday of him with the baby's mother, Georgina Rodriguez, and his oldest son in a hospital in Madrid.

The Real Madrid and Portugal forward accompanied the image with the message written in Portuguese: "Alana Martina has just been born! Both Geo and Alana are fine! We are all very happy!"

A Alana Martina acaba de nascer! Tanto a Geo como a Alana estão muito bem! Estamos todos muito felizes! ❤️ pic.twitter.com/nMT4rYc32U — Cristiano Ronaldo (@Cristiano) November 12, 2017

The baby is Ronaldo's fourth child. He had two children earlier this year, reportedly through a surrogate mother.

Ronaldo made his relationship with Rodriguez public last year.