At 10.15 pm (BST) on the night of 14 June 1982, British prime minister Margaret Thatcher announced to the House of Commons that negotiations had begun for the surrender of the Argentine invasion force in the Falklands, ending the Falklands War. Her statement noted that "they are reported to be flying white flags over Port Stanley", the capital of the Falklands. This was based on an erroneous report from a front-line unit; in fact, no white flags are known to have been flown, though Argentine resistance ended and a ceasefire was in place. The surrender was finalised by 1.30 am on 15 June, BST. Thatcher's statement was welcomed from all sides in the House, and she left to join celebrating crowds in Downing Street. She later described the statement as "perhaps the proudest moment of my life".