The unidentified aerial vehicle crossed into South Korean territory on Wednesday.
In exclusive interviews for CNN, two prisoners speak of their alleged crimes and hard labor.
House Republican leaders are considering a vote on long-delayed legislation to broaden sanctions against Pyongyang.
The United Nations Secretary General was speaking ahead of an emergency meeting of the U.N. Security Council.
Pyongyang wants the resumption of tourist trips to the country, while Seoul will ask for family reunions.
If the trip goes ahead, Ban will be the third U.N. secretary-general to visit the country.
But the president said Pyongyang needed to show it was serious about abandoning nuclear weapons.
Tension between the two Koreas has risen since landmine explosions in the DMZ wounded two South Korean soldiers.
Recruiters are reportedly searching the country to find beautiful women.
Norway joins UK, Germany and others in signing up to China-led bank, with Japan and U.S. absent.
Tour companies happy after Pyongyang overcomes apparent paranoia over disease.
Foreign runners allowed to participate in Pyongyang marathon for first time last year.
The North Korean regime tries to find the silver lining in a much-circulated satellite image.
Lawmakers will impose stiffer punishments on foreign companies doing business with Pyongyang.
The group hopes to negotiate talks with the North Korean government to resolve issues between the two countries.
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