US central bank
keeping them at the same level since December 2008.
The Federal Reserve said nine members of its Federal Open Market Committee voted to hold the key federal funds rate target at 0 to 0.25%.
Committee member Jeffrey Lacker was the only dissenter, favouring a 0.25 percentage point rise.
The Fed hinted that concerns about the strength of the global economy influenced the decision.
"Recent global economic and financial developments may restrain economic activity somewhat and are likely to put further downward pressure on inflation in the near term," the committee said in a statement.
Signs of weaker growth in China have led to fear among investors about US economic growth.