South Korea’s defence minister said on Tuesday North Korean mines caused a blast last week that injured two South Korean personnel in the demilitarised zone (DMZ), adding that the incident violated the Korean war armistice agreement and warranted a response against Pyongyang. Defence Minister Kang Shin-chul told a parliamentary committee that the mines were North Korean and appeared to have been planted in the area as part of North Korea’s border fortification work near the military demarcation...