Princess Mary's twins celebrate 10th birthday with new photos

Princess Mary's twins, Prince Vincent and Princess Josephine are all grown up as they celebrate their 10th birthday.

The siblings posed for a series of photos to mark the occasion, which was posted to the royal family's Instagram account.

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Fans flocked to the comments to gush over the beautiful photographs, with the Prince dressed in a white shirt and slacks and Princess Josephine in a yellow polka dot top and trousers, with a matching bow in her hair.

The royal family also revealed that the pair were given their own royal monogram as a birthday present, created by graphic designer Charlotte Søeborg Ohlsen.