Prince William on Catherine's pregnancy: 'We're immensely thrilled'

Prince William has said he is "immensely thrilled" that the Duchess of Cambridge is pregnant with her second child.

Catherine had been due to join him in formally opening a £21m China study centre at Oxford University on Monday, but Buckingham Palace said morning sickness meant that she would no longer be attending.

Speaking after his Oxford visit, Prince William said: "She's feeling OK, it's been a tricky few days...we're immensely thrilled, it's great news."