Dwayne Johnson and Lauren Hashian have shared a photo of their new baby daughter.

The 45-year-old actor and his partner - whom already have two-year-old daughter Jasmine together - welcomed a daughter named Tiana Gia Johnson into the world recently and shared the news on social media this week, and Lauren has now posted a new picture of their ''peaceful peanut'' on her Instagram account.

She captioned the snap, which featured her and the 'Rampage' actor sharing a loving kiss whilst cradling the tot: ''It's so incredible to finally meet you our sweet little Baby Tia. You are the most peaceful peanut, our little angel & wow, are we lucky... completely in love April 17, 2018 - 8:47pm (sic)''

The sweet new picture comes after Dwayne - who also has 16-year-old Simone from a previous relationship - took to his own account earlier this week to announce the birth of his third daughter.

He wrote in part of the lengthy caption: ''Skin to skin. Our mana.

''Blessed and proud to bring another strong girl into this world.

''Tiana Gia Johnson came into this world like a force of nature and Mama @laurenhashianofficial labored and delivered like a true rockstar.

I was raised and surrounded by strong, loving women all my life, but after participating in baby Tia's delivery, it's hard to express the new level of love, respect and admiration I have for @laurenhashianofficialand all mamas and women out there. (sic)''

The 'Fast and Furious' star also revealed he has been on ''team no sleep'' since welcoming the new addition to his family, as he's been on ''baby duty''.

In a video message played at CinemaCon in Las Vegas, he said: ''Wish I could be there in person. I'm so sorry I can't be there. I am on baby duty right now. I just had my third baby daughter, Tiana Gia Johnson. We are so excited and so blessed so I'm on baby duty.

''And you know what, it's that thing that I'm going through, what's that thing called? Yeah, no sleep. I'm on team no sleep and a lot of you guys know what that's like.''