Zara and Mike Tindall are expecting their second child

The Queen is set to be a great-grandmother again.

A spokesperson for Zara Tindall has announced the young royal is expecting her second child with husband Mike Tindall.

The news comes as the couple celebrated Christmas and New Year in Australia, with their three-year-old daughter Mia, enjoying some time off in the sunshine before work commitments.

A Buckingham Palace spokesperson has said the Queen is "very pleased" by her grand-daughter's news, with the baby believed to be due in the summer, making it the reigning monarch's seventh great-grandchild.

Number six is expected just months earlier, with Prince William and Kate set to welcome their third child in April.

Zara and Mike married in 2011 and became parents in January 2014.

The couple announced in November 2016 that they were pregnant again but later revealed they'd suffered a miscarriage.

Zara is the daughter of Anne, Princess Royal and Captain Mark Phillips. The baby will therefore be 19th in line to the throne.