First Look South Korea fears continued weapons development from North Korea

South Korean intelligence agencies are keeping a close eye on their northern neighbor with suspicions that further missile tests by North Korea before year's end are likely. Political analysis also shows an internal overhaul of military officials within Pyongyang's government. 

Ahn Young-joon/AP/File

North Korea may conduct additional missile tests this year to polish up its long-range missile technology and ramp up the threat against the United States, South Korea's spy agency said on Monday, adding that it was monitoring developments closely.