The test towards the Sea of Japan is the first time the isolated state has tried out such a device since the new president took office.
Mr Trump made his pledge of support during a joint press conference with Japenese Prime Minister Shinzo Abe.
The test towards the Sea of Japan is the first time the isolated state has tried out such a device since the new president took office.
Mr Trump made his pledge of support during a joint press conference with Japenese Prime Minister Shinzo Abe.