Prince William and his long-term girlfriend Kate Middleton have ended their relationship, a British newspaper reported on Saturday.
The Sun said the couple had reached an "amicable agreement" to separate.
William's Clarence House office refused to comment, saying it did not discuss the prince's private life.
The newspaper said the split was caused by the huge pressures on the young couple and because of William's career in the army.
He graduated earlier this year from Sandhurst military academy.
The 24-year-old prince and 25-year-old Middleton met as students at St. Andrews University in Scotland and have been dating for several years.
Middleton has been the focus of intense media pressure for months as rumors spread that the couple would announce their engagement.
London residents expressed their opinions on the reported split on Saturday.
"Well it's media pressure I think, it's inevitable I expect at this young age. Far too much pressure I think," one resident told AP Television.
"It's all so natural, people meet at university and then go out to work and it's a different environment isn't it as well. I don't think people want to get tied up too young these days," he added.
However, an American tourist quipped "I'm sure a lot of young girls are happy."
Middleton has frequently had to dodge paparazzi on her way to work as a retail accessories buyer in scenes that evoked the romance of William's father, Prince Charles, and the then-Lady Diana Spencer a quarter-century ago.
Charles and Diana married at St. Paul's Cathedral in 1981, in a televised ceremony watched by millions around the world.
They had two sons, William and Harry, but divorced in 1996 after admissions of adultery on both sides.
Diana died in a car crash in August 1997 in Paris.
Last month, Middleton lodged a complaint of media harassment with Britain's press watchdog, the Press Complaints Commission.
She settled the claim earlier this month following an apology and admission of error by the Daily Mirror newspaper.