Mel Gibson is expecting his ninth child with his 26-year-old girlfriend.

The 60-year-old Hollywood actor announced his partner of two years Rosalind Ross is pregnant to People magazine.

The pair went public with their romance at the Golden Globes in January.

Ross is a scriptwriter and former equestrian vaulter (gymnast on horseback) who is reportedly a millionaire in her own right.

She has previously spoken about the "negative attention" she has received for being so much younger than Gibson.

While it is the first child for Ross, Braveheart star Gibson has seven children with his ex-wife.

He also has a six-year-old daughter with his ex-girlfriend Oksana Grigorieva.