He said Prince Philip was an environmentalist and "champion of the natural world long before it was fashionable".
In 2010, The Duke of Edinburgh visited the Olympic Park to view the construction of the Olympic Stadium - now West Ham's London Stadium home - and Aquatics Centre ahead of the 2012 Olympic and Paralympic Games.
Britain's Prince Philip Has Died at Age 99
Johnson ended his remarks by offering the nation's condolences to the 95-year-old Queen and her family.
"He had a distinguished career in the military and was at the forefront of many community service initiatives. May his soul rest in peace", Modi said.
Australian Prime Minister Scott Morrison said Prince Philip "embodied a generation that we will never see again".More news: Frederick, Maryland shooting: Police report 2 victims, and 'one suspect is down'
On Twitter, where each account used to have a personalised photograph as their background cover image, the Royal Family, Clarence House, and the Kensington Royal accounts now all feature the same black and white picture of Prince Philip. "God bless from all here in Australia". "We give thanks, as a nation and a kingdom, for the extraordinary life and work of Prince Philip, Duke of Edinburgh", he concluded.
The Duke of Edinburgh, the longest serving royal consort in British history, died Friday at age 99.
"However, he will be remembered most of all for his extraordinary commitment and devotion to The Queen".More news: Peel Region schools move classes online
The husband of Queen Elizabeth II, Prince Philip of 74 years, Prince Philip was by Her Majesty's side to guide the United Kingdom through almost seven decades following The Queen's coronation in 1952. "He was a master at putting people at their ease and making them feel special".
The husband of Queen Elizabeth II was taken to hospital in Ferbruary. With his Duke of Edinburgh Awards Scheme, he shaped and inspired the lives of countless young people, and at literally tens of thousands of events, he fostered their hope and encouraged their ambitions.More news: Police say they're responding to a shooting in Frederick, Maryland