The authorities will remain vigilant toward rapid market swings and take steps as necessary, Asakawa, the vice finance minister for international affairs, told reporters after a meeting with his counterparts at the Bank of Japan and Financial Services Agency.

Japan is set for an unusually long 10-day holiday - from April 27 through May 6 - combining its annual Golden Week with extra days to celebrate the enthronement of a new emperor.

Copyright Reuters, 2019