The three countries are said to have an agreement in the works to counter nuclear and missile threats, to be signed Monday.
North Korea's Internet was cut off for several hours on Tuesday
State-sponsored hackers are reportedly working in the secretive 'Bureau 121'
Kim visited a residential district and a science academy, state media reported early on Tuesday, ending a lengthy absence from public view that had fueled speculation over his health and grip on power in the secretive country.
If North Korea's leader Kim Jong Un he does not appear at a key political event early on Friday, speculation will intensify over his health and grip on power
The 24-year-old American is serving a sentence of six years hard labor