Minneapolis Fed President Neel Kashkari said in an interview on Monday that the U.S. economy was in "uncharted waters".

"Even now, with the current economic environment, we're still in somewhat uncharted waters, and Chair Yellen has been bringing real creativity and real open-mindedness to how we approach monetary policy. That's the right thing for the country," he said.

Kashkari noted that developments abroad had an impact on the U.S. economy.

"Clearly what happens in global financial markets, as an example, will affect the U.S. economy. We can't be blind to the fact that actions we take could affect global economic developments, which in turn will have an effect on our economy. We need to think about those feedback loops, and I believe that we do," Minneapolis Fed president said.

Kashkari is not a voting member of the Federal Open Market Committee (FOMC) this year.