Finance Minister Taro Aso said Friday the existing international pledge to refrain from targeting foreign exchange rates for competitive purposes should be kept, after contradictory remarks on the dollar by U.S. President Donald Trump and his treasury secretary shook currency markets.

"We have the agreements by the Group of Seven and Group of 20 countries that we should not target foreign exchange rates for competitive purposes, so it should be dealt with accordingly," Aso told reporters after a Cabinet meeting.

Aso also said he would not comment on remarks made by foreign government officials, when asked about the views of Trump and Treasury Secretary Steven Mnuchin on currency policy.