A gun salute will take place in Edinburgh on Saturday to mark the death of Prince Philip.
Saluting batteries will fire 41 rounds – one each minute – from midday.
The salute will take place in London, Cardiff and Belfast, along with the Scottish capital.
In addition there will be gun salutes in Gibraltar and from Royal Navy warships, the Ministry of Decence (MoD) has confirmed.
Such salutes have been fired to mark significant national events since as early as at least the 18th century. They were used to mark the deaths of Queen Victoria in 1901 and Winston Churchill in 1965.
The public is being encouraged to observe the gun salutes, which will be broadcast online and on television, from home.
Defence Secretary Ben Wallace said: "His Royal Highness Prince Philip, the Duke of Edinburgh was a constant supporter and ambassador of the armed forces. We celebrate his life of service and offer our condolences to Her Majesty the Queen and the royal family."
Chief of the Defence Staff, General Sir Nick Carter said: "His Royal Highness has been a great friend, inspiration and role model for the armed forces and he will be sorely missed.
"The Duke of Edinburgh served among us during the Second World War, and he remained devoted to the Royal Navy and the armed forces as a whole.
"A life well lived, His Royal Highness leaves us with a legacy of indomitable spirit, steadfastness and an unshakeable sense of duty. From all of us who serve today and who have served, thank you."
Edinburgh Live reported on Friday how people in the city were reacting to news of the Duke's death.
Members of the public paid tribute to Prince Philip, with some even suggesting a permanent memorial should be erected in Scotland's capital in recognition of his service.
Follow all the reaction as tributes pour in to Prince Philip here.
Christine Still and Marie McCathie were among those to pay tribute to the Duke.
Christine said: "He's been here all of my life, so to hear the news is very sad. I had a tear in my eye when I heard it. He's been by the Queen's side through everything, and whether you are a royalist or not I think this will have an impact.
"I'm just really sad for the Queen. She's not got her right hand man now.
"I think there should be some sort of statue for him. He was the Duke of Edinburgh after all. Maybe at the castle or at Holyrood."
Marie added: "I think a lot of people have been sharing their sympathy, whether you are a royalist or not.
"My grandson, who is 19, was saying how sad it is. So there's people from all different ages speaking about this."
