The Japanese Prime Minister’s office said in a tweet that North Korea launched a “possible ballistic missile.”
Monday’s presumed test follows two last week and one a week earlier as Pyongyang continues to pursue a missile program.
North Korea claimed to have a successfully test-fired hypersonic missiles on January 5 and 11, according to the state-run Korean Central News Agency.
Pyongyang also test fired two presumed to be short-range ballistic missiles from a rail car on January 14.
In a recent statement carried by KCNA, a spokesman defended the country’s right to bolster its arms, saying its “recent development of new-type weapon was just part of its efforts for modernizing its national defense capability.”