The U.S. Department of Energy has designated ally South Korea a "sensitive" country, a spokesperson said on Friday, after the South Korean president briefly imposed martial law and amid talk of Seoul potentially developing nuclear weapons.

South Korea's foreign minister told the country's legislature Wednesday that developing nuclear weapons is not off the table

US-sensitive country WASHINGTON, March 14 (Yonhap) -- The placement of South Korea on the U.S. Department of Energy's "sensitive country" list might pose a tricky test to the bilateral alliance, experts said Friday,

Thousands of South Koreans have filled the streets of downtown Seoul in massive rival rallies for and against impeached President Yoon Suk Yeol.

The Constitutional Court is expected to decide in the coming days whether to oust Yoon in a case that ignited South Korea's worst political crisis in decades and rattled markets. In central Seoul, anti-Yoon protesters filled a large square,