Prince William says Duke of Edinburgh is 'OK' in hospital

Watch: The Duke of Cambridge speaks about the Duke of Edinburgh.

The Duke of Cambridge gave a reassuring wink when asked about the health of his grandfather at a King's Lynn vaccination centre today.

Prince William said the 99-year-old was "OK" and "they're keeping an eye on him" and gave a wink.

Prince William popped by to meet those getting a jab and the staff and volunteers keeping the centre running.

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The Duke of Cambridge attended the site at the Corn Exchange to find out about the roles people are playing in the fight against coronavirus.

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Last week the Duke of Cambridge paid tribute to a "much loved" Norfolk nurse who died after contracting Covid-19. 

The visit comes as his grandfather, the Duke of Edinburgh, spent a sixth night in a London hospital. 

Officials gave no update on the 99-year-old’s condition, having previously said he was “in good spirits”.