New photos to mark Duchess of Cambridge's 40th birthday

Royal officials in Britain have released three portraits of Kate, the Duchess of Cambridge, ahead of her 40th birthday. The photographs show the Duchess wearing Alexander McQueen dresses.

The images of Kate, who turns 40 on Sunday, will go on display across the U.K. in three places. Berkshire is the county where she grew up, St Andrews in Scotland is where she studied, and Anglesey is the Welsh island where she and her husband Prince William first set up home as a married couple.