Federal Reserve Bank of Chicago President Autan Goolsbee on Friday said the U.S. economy is not showing signs of overheating, so central bank officials should be wary of keeping restrictive policy in place longer than necessary.

"You don't want to tighten any longer than you have to," Goolsbee told National Public Radio in an interview. "And the reason you'd want to tighten is if you're afraid the economy is overheating, and this is not what an overheating economy looks like to me."

(Reporting By Dan Burns)