Britain's Prince William and his wife Kate are expecting their second baby, Buckingham Palace said on Monday.
The couple's first child, Prince George, was born in July last year amid a huge international media frenzy. William is second in line to the British throne, with George third.
"The Queen and members of both families are delighted with the news that their royal highnesses are expecting their second child," Buckingham Palace said in a statement.
There was no detail of when the baby was due.
Kate, the Duchess of Cambridge, is again suffering from hyperemesis gravidarum, a form of very acute morning sickness that caused her to be hospitalised when she was pregnant with George.
The duchess, 32, is currently being treated by doctors at the couple's London home in Kensington Palace, a spokesman said.
She was due to attend an official engagement in Oxford on Monday but cancelled because she has morning sickness, the palace said.
Prime Minister David Cameron was among the first to offer his congratulations to the couple, saying he was "delighted by the happy news that they're expecting another baby".
William and Kate's first child, George Alexander Louis, was born on July 22, 2013 in London's St. Mary's Hospital, weighing eight pounds and six ounces (3.8kg).
The new baby will become fourth in line to the throne, pushing Prince Harry to fifth.
(FRANCE 24 with REUTERS)
Date created : 2014-09-08