North Korea: Security of Kim Jong Un 'tightened' as explosion rocks Pyongyang

The security of North Korean leader Kim Jong Un has been reportedly tightened following a suspected assassination attempt on him.

The move comes after an explosion rocked Pyongyang recently.

Kim Jong Un is feeling uneasy about his safety, sources reported.

According to reports, the North Korean leader has imported modern equipment and has included briefcase-wielding security men in his protection team. 

However, South Korean spy agencies have reportedly said they are unaware of any such explosion and are tracking related developments.