Tokyo announced Wednesday new unilateral economic sanctions on North Korea following its Jan. 6 nuclear test and the launch Sunday of what Japan denounced as a long-range ballistic missile.

It will ban North Korean nationals from entering Japan and outlaw remittances to the North except for those made for humanitarian purposes and less than ¥100,000 in size. Japanese ports will also deny access to North Korean ships and other nations' vessels that have called there.

The measures include the reimposition of some of the sanctions Japan lifted in May 2014 to reward Pyongyang for agreeing to look into the fates of Japanese nationals believed abducted in the 1970s and 1980s.