A family from Luton are celebrating their twins' first birthday. Not that unusual, until you hear that the pair were born 4 months premature.
The odds were stacked against Caitlin and Daniel Darby, but they survived.
Their parents say it's all thanks to the Luton and Dunstable Hospital, where they were cared for.
Click below to watch a report from ITV News Anglia's Olivia Paterson
The Duke of Edinburgh has just arrived at the Luton and Dunstable Hospital where he will officially open a new Cardiac Centre.
His Royal Highness will spend the afternoon touring the facilities, and speaking to staff and patients.
Ahead of his arrival staff and members of the public gathered outside, waving flags and straining to catch a glimpse of Prince Philip.