Prince Harry is attending the annual WellChild Awards ceremony in London this evening, with a series of pictures showcasing the Duke's playful side. After arriving at the Royal Lancaster Hotel shortly after 4pm, the King's youngest son went to meet some of this year's winners.

       This included nine-year-old Gwen Foster, who was born with spina bifida and hydrocephalus and faces daily complex medical challenges. The pair engaged in a playful "sword fight" with yellow balloons.

       The WellChild awards celebrate the achievements and resilience of seriously ill youngsters and their families.

       Prince Harry and Gwen Foster, nine, played with yellow balloons formed into the shape of a sword this evening. The pair giggled as they participated in a play sword-fight in front of Gwen's mum. The young girl was born with spina bifida and hydrocephalus and faces daily complex medical challenges.

       (Image: Ian Vogler)

       Prince Harry is in his element tonight, as he starts his four-day trip to the UK. During his stay he will conduct several engagements, in a reminder of his former life as a working royal.

       (Image: Getty Images)

       Prince Harry is given a Brighton and Hove Albion football shirt, a gift for his son Prince Archie, by Gwen and her mother. It has the number six printed on the back, which is Archie's age.

       (Image: PA)

       The Duke of Sussex speaks with Declan Bitmead (centre), the recipient of the Inspirational Young Person award.

       (Image: PA)

       A close-up detail of wording on a bracelet worn by Prince Harry. It says 'superhumans' in bold as well as the words "whoever saves one life".

       (Image: Getty)

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