LONDON, September 08. /ITAR-TASS/. Britain's Prince William and his wife Catherine, the Duchess of Cambridge, are expecting their second child, Buckingham Palace said on Monday.

"The Queen and members of both families are delighted with the news," Buckingham Palace said in a statement. giving no details of when the baby was due.

The couple's first child, Prince George, was born in July 2013 and is third in line to the throne.

The duchess is being treated by doctors at Kensington Palace, Buckingham Palace said.