Gigi Hadid's mother Yolanda Hadid has confirmed her daughter is expecting her first child and said she is "so excited" to become a grandmother later this year.

The 56-year-old Dutch-American reality star, who is best known for her appearances on The Real Housewives of Beverly Hills, revealed the impending arrival to due in September.

"Of course we are so excited. I'm excited to become a grandmother in September especially after I lost my mom so recently," she told Dutch broadcasting station RTL Boulevard.

"But this is the beauty of life, one soul leaves us and a new one comes in. We feel very blessed."

She added: "I can't wait to become a grandmother."

Zayn Malik and Gigi Hadid are expecting their first child together

On Wednesday, celebrity website TMZ, quoting "family sources", claimed that the 25-year-old model is 20 weeks pregnant, and expecting her first child with former One Direction star Zayn Malik.

The couple, who began dating in 2015, split three years later and reconciled last year.

Hadid recently celebrated her 25th birthday with Malik (27) at her family's farm in Pennsylvania. 

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According to several media outlets, the couple are reportedly set to welcome a baby girl, with many sources suggesting Gigi's birthday also doubled up as a gender reveal party.