A Japanese 1,000 yen banknote sits on a pile of South Korean won banknotes for an arranged photograph at a Woori Bank Co. branch in Seoul, South Korea.

The dollar fell on Friday as the U.S. Federal Reserve's new policy framework suggested that interest rates would remain low, while the yen surged after Japanese Prime Minister Shinzo Abe announced his resignation.

The yen significantly strengthened against the dollar after the news that Abe, Japan's longest serving prime minister, would step down due to worsening health.