India has expressed concern over North Korea's recent missile tests with External Affairs Ministry today saying that North Korea's continued pursuit of nuclear and ballistic missile programmes and its proliferation links pose a grave threat to international peace and stability. <br/><br/>It said, they have also adversely impacted India's national security. New Delhi has called upon Pyongyang to refrain from such actions that undermine international peace and stability. It has also urged the international community to work together to hold all those parties accountable that have supported these programmes.