Seoul, South Korea (CNN) -- South Korea's spy chief said Wednesday that there is a high chance that North Korea will attack again following a strike last month that has led to renewed tensions on the peninsula, the Yonhap news agency reported.
South Korean lawmaker Rhee Beum-Kwan quoted National Intelligence Service chief Won Sei-hoon as making the prediction, Yonhap reported.
"North Korea pushed for reckless actions as internal complaints grew over its hereditary power succession and economic situations worsened," the lawmaker quoted Won as saying.
Meanwhile, South Korea and the United States wrapped up joint military exercises on the Yellow Sea, while South Korea carried on with plans for artillery firing drills next week amid simmering tensions with Pyongyang.
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