In a statement, the North Carolina-based Bank of America said it would "not process transactions of any type that we have reason to believe are intended for Wikileaks".
Wikileaks have said they will be releasing documents concerning 'unethical' corporate and banking mispractice in the US.
Now wikileaks is urging "all people who love freedom close out their accounts at Bank of America".
There is also a call for businesses to "place your funds somewhere safer".
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