South Korea President Yoon Suk Yeol said the country was prepared in its alliance with the United States to strike back if North Korea attempted a nuclear attack against it, Newsweek reported on Friday.

North Korea has disrupted GPS signals along its western border, affecting South Korean aircraft and ships near Kaesong and Haeju. The provocations, which threaten aviation safety, have raised concerns over the vulnerability of commercial air traffic.

North Korea is causing GPS disruptions for South Korean airplanes and boats in its latest cross-border provocation, according to the Defense Ministry in Seoul.

South Korea fired a short-range surface-to-surface ballistic missile into the Yellow Sea in response to North Korea's recent series of missile launches, Seoul's Joint Chiefs of Staff said Friday.

President Yoon Suk Yeol said a nuclear-based alliance between South Korea and the United States will immediately strike if North Korea attempts a nuclear attack against the South, according to an interview published Friday.

The South Korean Missile Strategy Command fired a Hyunmoo-2 missile from South Chungcheong Province, about 65 miles southwest of Seoul, to demonstrate the command’s ability to make “precision strikes against the enemy’s origin of provocation,