SEOUL (Reuters) - 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.