First lady Michelle Obama, daughters Sasha and Malia and mom Marian Robinson continued their girls' tour of Europe with a surprise stop in London on Monday. They had spent the weekend in Paris (see photos). Photos of the London visit below.
According to the BBC, the first family visited the Houses of Parliament and is believed to have visited Big Ben.
They were later photographed leaving 10 Downing Street, the residence of Prime Minister Gordon Brown and wife Sarah.
The Daily Mail reports that the visit will last a day.
LONDON - U.S. first lady Michelle Obama made an unannounced visit to London on Monday after attending D-Day commemorations in Europe.
British Prime Minister Gordon Brown's office said Obama had a private meeting with Sarah Brown, the prime minister's wife, at 10 Downing Street.
She did not meet with the prime minister, a spokesman for Brown's office said.
Obama was accompanied by her two daughters, Sasha and Malia, on her whirlwind visit to London, but her husband, President Barack Obama, was already back in the United States after a trip to the Middle East and Europe.
The spokesman declined to say whether Brown's office helped arrange a reported visit by Obama and her children to see the British Parliament's famous clock tower -- the iconic home of the Big Ben bell.
He spoke anonymously Monday in line with official policy.
The first lady's trip to Europe also included a chance to have dinner with her husband at a popular Paris bistro and some sightseeing in Paris.
The White House has released no information.
Photos from Getty.