North Korea Rocket Launch: South Korea On High Alert As Military Beefs Up Surveillance, Foreign Minister To Visit UN

South Korea’s presidential office announced Monday that the country was on high alert to detect further provocations from rival North Korea, which fired a long-range rocket Sunday that could be used to mount a nuclear warhead. While the United Nations announced that more sanctions would be imposed against Pyongyang over the launch, a North Korean patrol boat crossed the maritime border between the two countries Monday.