Televised Mega Millions draw
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US winner in $640m Mega Millions lottery draw

31 March 2012 Last updated at 10:51 BST

At least one ticket - bought in Maryland - is a winner in the $640m (£400m) Mega Millions lottery, officials say, after the biggest jackpot in history.

Earlier, queues snaked out of shops from coast to coast as people took a punt at the biggest jackpot in world history.

Jonathan Blake reports from Washington.