Most recently, in 2017, thousands lined the streets as The Queen and Prince Philip visited Poplar to commemorate the 100th anniversary of the bombing of Upper North Street School during the First World War.
Johnson continued: "We remember the Duke for all of this and above all for his steadfast support for Her Majesty the Queen".
"It is to Her Majesty, and her family, that our nation's thoughts must turn today", Mr Johnson said.
"I am saddened by news that the Duke of Edinburgh has died".
Johnson ended his remarks by offering the nation's condolences to the 95-year-old Queen and her family.
A Greek prince, Prince Philip married the Queen in 1947.
Prime Minister Narendra Modi Friday condoled the demise of the UK's Prince Philip and hailed him for his distinguished career in the military as well as him being at the forefront of many community service initiatives. "May his soul rest in peace", Modi said.
The prime minister added that the royal had "earned the affection of generations" both domestically and across the world.
"The Commonwealth family joins together in sorrow and thanksgiving for the loss and life of Prince Philip. God bless from all here in Australia".
A BBC spokesperson told Yahoo: "With the sad news that HRH Prince Philip, The Duke of Edinburgh, has died, there is now special coverage across all BBC networks to mark his life of extraordinary public service and planned scheduling has been suspended".
FILE - In this August 1951 photo, Britain's Queen Elizabeth II, then Princess Elizabeth, stands with her husband, Prince Philip, the Duke of Edinburgh, and their children Prince Charles and Princess Anne at Clarence House.
FILE - In this April 12, 1954, photo, Britain's Queen Elizabeth II and her husband the Duke of Edinburgh leave Freedom Hall in Colombo, Sri Lanka, after opening parliament.
"He was often way ahead of his time in protection of the environment, in reconciliation between religious faiths and. the creation of the Duke of Edinburgh's Award, which remains one of the most innovative and effective programmes for the betterment of young people anywhere in the world".
In a tweet, former prime minister Julia Gillard said she had "fond memories of spending time with Prince Philip during his visit to Australia at the time of CHOGM in Perth".
Mr Morrison said Australians sent "our love and deepest condolences to Her Majesty and all the royal family".
Ukraine says Russian military build-up is cover for domestic problems
The United States and European Union are watching reports of Russian troop movements on Ukraine's border with increasing concern. A month later, Russian-backed rebels in the predominantly Russian-speaking Donbass seized the Donetsk and Luhansk regions.