Turia Pitt welcomes her second child with fiancé Michael Hoskin

Turia Pitt has welcomed her second child with fiancé Michael Hoskin - a boy they have named Rahiti.

The couple are already parents to son Hakavai, aged two.

The burns survivor shared the happy news with her over 900,000 Instagram followers, writing: "Welcome to the world Rahiti."

Pitt, 32, was born in Tahiti and moved to Australia when she was three. She was raised in Ulladulla in New South Wales and met Hoskin in school.

Before the accident that changed her life, Pitt was an ultra-marathon competitor who worked for Rio Tinto.

In September 2011, Pitt suffered burns to 65 per cent of her body after becoming trapped by a grass fire during an ultra-marathon in the Kimberly. She lost her fingers and the thumb on her right hand and spent five months in hospital during which she wasn't expected to survive.

Since surviving the terrifying ordeal, Pitt has become a motivational speaker and has written three books - Everything to Live For and Unmasked as well as Good Selfie, available through her website.

Pitt spoke of life as a new mum after the birth of her first child in 2017, telling 9Honey she loves being a mum, but has learned very quickly how important it is to make time to care for herself.

"I know it can be hard to do, but I'd really encourage new mums to try and make some time for something they enjoy every day, or as close to that as possible," she said.

"Even if it's only for a few minutes.

"It's important to prioritise yourself. You've got to fill your bucket first!"