Prince William and Kate Middleton expecting third child: Kensington Palace

Prince William and his wife Katherine, with their children, Prince George and Princess Charlotte, at the airport in Hamburg, Germany, on July 21, 2017.
Prince William and his wife Katherine, with their children, Prince George and Princess Charlotte, at the airport in Hamburg, Germany, on July 21, 2017. PHOTO: EPA
Britain's Prince William, the Duke of Cambridge and his wife Princess Kate, the Duchess of Cambridge, attend a reception at Claerchens Ballhaus, in Berlin Germany, on July 20, 2017.
Britain's Prince William, the Duke of Cambridge and his wife Princess Kate, the Duchess of Cambridge, attend a reception at Claerchens Ballhaus, in Berlin Germany, on July 20, 2017.PHOTO: REUTERS

British royal couple Prince William and wife Kate Middleton are expecting their third child, the Kensington Palace said in a statement on Monday (Sept 4).

"Their Royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting their third child," said the statement.

"The queen and members of both families are delighted with the news."

The statement added that the Duchess is suffering from Hyperemesis Gravidarum, an extreme form of morning sickness, and is being cared for at the palace.

She also suffered from the condition in her previous two pregnancies.

The 35-year-old has two other children with Prince William: Four-year-old Prince George of Cambridge, and Princess Charlotte of Cambridge, who is two.

The duchess cancelled her planned engagement at the Hornsey Road Children's Centre in London on Monday.