Dwayne 'The Rock' Johnson's girlfriend has given birth to a baby girl

The 'San Andreas' actor and his partner Lauren Hashian welcomed their daughter into the world earlier today (16.12.15) and the new arrival is said to be doing well.

An insider told E! News that Dwayne was "very emotional and excited" to see the baby for the first time, and he and Lauren are "beyond happy for this next chapter in their lives".

No details about the baby, including her name and weight, have yet been revealed.

Lauren was hoping the little one wasn't going to be as well-built as her partner.

She wrote on Instagram earlier this week: "Like Big Daddy says - Couldn't be prouder of all the kickass women she's going to have around her! And Men of course ;)..

"#LetsJustHopeBigDaddyDoesnt=20lbBaby (sic)"

Lauren has been fairly quiet on social media since announcing her pregnancy, but admitted she had enjoyed every minute.

She also wrote: "I know I'm late to the party... Sometimes life gets full and busy in the best ways :)... So grateful and in awe of this time. To experience creating a little life is just incredible. This beautiful cycle of life and womanhood beginning again. (sic)"

The couple announced in September they were having their first child together and the 43-year-old wrestler-turned-actor - who already has a 14-year-old daughter, Simone, with ex-wife Dany Garcia - revealed last month they found out they are expecting a girl.

He posted a picture of himself cradling Lauren's baby bump, and captioned the image: "I was raised by and live with amazing and strong women, so the universe felt we needed one more... IT'S A BABY GIRL!! THANK YOU guys so much for the awesome support and love you've sent @laurenhashianofficial and myself from around the world. We're so grateful for this blessing and thrilled to share the news with y'all. (sic)"