The United States and South Korea would maintain the "strongest possible joint deterrent" over North Korea's "escalatory actions", the U.S. envoy on North Korea said on Monday, amid concerns that Pyongyang was preparing to resume nuclear testing.
U.S. Special Representative Sung Kim and his deputy, Jung Pak, met South Korean officials, including nuclear envoy Noh Kyu-duk, after arriving in Seoul early on Monday for a five-day visit.
