Actor Hugh Grant is a father for the second time.

The Did You Hear About the Morgans? star’s on/off girlfriend Tinglan Hong has given birth to a baby boy.

Taking to his Twitter page, Grant wrote: "In answer to some journos, am thrilled my daughter now has a brother. Adore them both to an uncool degree. They have a fab mum."

He later added, "And to be crystal clear. I am the Daddy."

The 52-year-old star and Hong first became parents in 2011.

Details of the newborn's name and his exact date of birth have not been released.