Myanmar's military has maintained ties with North Korea, even though the civilian-led government denies any cooperation, and the Trump administration is pressing for a complete break-off of remaining links, current and former U.S. officials said.

Washington made its case to Myanmar's de facto leader, Nobel Peace Prize laureate Aung San Suu Kyi and the army chief Senior General Min Aung Hlaing during a visit to the country this week by the U.S. special envoy for North Korea.

U.S. Ambassador Joseph Yun's trip to Myanmar underlined continuing U.S. worries over North Korean links that date back to Myanmar's decades of military rule, a senior State Department official said Friday.