Josh Hartnett and Tamsin Egerton welcome a baby

Josh Hartnett is a new dad - his partner Tamsin Egerton has given birth to the couple's first child.

The actors confirmed the safe arrival of their little one as they were photographed leaving St Mary's Hospital in London on Monday (30Nov15), although no official statement has been released.

The stars are believed to have become first-time parents in the final days of November, after announcing they were expecting a baby in July (15).

Pearl Harbor actor Josh, 37, was photographed with a baby carrier in his hand as he followed Tamsin, 27, out of the hospital, with the baby hidden from view by a blanket. A hint of pink fabric could be seen peeping out, suggesting the couple may have welcomed a daughter.

The couple met on the set of the film Singularity, but they didn’t begin dating until after the filmed wrapped in 2012.

Hartnett and Egerton recently purchased a new home in London as they prepared for the arrival of their first child.

The movie hunk sold his four-bedroom mansion in Minnesota in June (15), and has now moved into a north London property with the British actress.