File photo of ex-British PM Margaret Thatcher, during her election tour in London in 1982
Britain's Queen Elizabeth II and Prime Minister David Cameron said on Monday they were saddened by the death of former premier Margaret Thatcher at the age of 87.
"The Queen was sad to hear the news of the death of Baroness Thatcher. Her Majesty will be sending a private message of sympathy to the family," Buckingham Palace said.
Cameron said: "It was with great sadness that I learned of the death of Lady Thatcher. We have lost a great leader, a great Prime Minister and a great Briton."