London (BBN) -- Another royal baby is on its way.
The Duke and the Duchess of Cambridge are expected to become parents for a second time, Buckingham Palace announced Monday.
"The Queen and members of both families are delighted with the news," the palace said.
Catherine and William's first child, Prince George, was born in July 2013, reports CNN.
As during her first pregnancy, Catherine is suffering from Hyperemesis Gravidarum, the palace said.
She is being treated by doctors at Kensington Palace and won't accompany William on a planned visit to Oxford on Monday.
BBN/ANS-08Sept14-4:20pm (BST)