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.
The Duke of Edinburgh made good a promise to visit Hertfordshire today to officially open a new business centre for first-time entrepreneurs.
My Incubator is a council-backed venture in Stevenage which has already helped launch 50 companies.
The Duke had been due to tour the facilities earlier in the year but poor health kept him away. During the visit he also spoke to local schoolchildren.
The Duke of Edinburgh has arrived in Hertfordshire today to officially open a new business centre.
He will speak to local entrepreneurs who have been helped by the council-backed project in Stevenage. So far 50 companies have been launched with its support.
During his visit Prince Philip will also talk to local school pupils and will unveil a commemorative plaque