Naomi Campbell becomes a mother for a second time, aged 53

Supermodel Naomi Campbell has become a mother for the second time, aged 53.

The star, who welcomed her first child two years ago, announced the arrival of her son online on Thursday, telling her followers "it's never too late".

She had not previously revealed she was expecting a second child and did not offer any further details around the birth.

She called the latest addition to her family "a true gift from God".

"My little darling, know that you are cherished beyond measure and surrounded by love from the moment you graced us with your presence," she wrote on Instagram, alongside a photograph which appears to show her and her daughter holding the newborn baby's hand.

"A True Gift from God, blessed! Welcome Babyboy. #mumoftwo."

She added: "It's never too late to become a mother."

Fellow model Claudia Schiffer, fashion designer Donatella Versace and singer Kelly Rowland were among the famous names posting congratulatory messages.

Last year, Campbell - the first black model to appear on the cover of Vogue - posed with her daughter for the cover of British Vogue, and affirmed she had not been adopted: "She's my child," she said.

The model and charity fundraiser, who received an honorary doctorate last year for her impact on global fashion. described becoming a mum as "the best thing I've ever done".

In a separate interview with BBC HARDtalk, she told Zeinab Badawi: "I'm really lucky, I think I have a dream child."

Since becoming a mother, Campbell has continued to perform on the catwalk for top fashion collections, such as Alexander McQueen and Versace.