International security/ Mutual accusations

North Korea on Sunday described US President Barack Obama as a "loser" over his criticism on its regime, accusing him of being obsessed with hostility towards Pyongyang.

The comment from the North's foreign ministry came after Obama spoke of the eventual collapse of the regime ruling what he called "the most isolated, the most sanctioned, the most cut-off nation on Earth".

"We will keep on ratcheting the pressure, but part of what's happening is... the Internet over time is going to be penetrating this country," Obama said in an interview on YouTube from the White House last week.

"Over time you will see a regime like this collapse," he said, adding the US was looking for ways to accelerate the flow of information into the country.

North Korea slams 'loser'Obama for regime collapse remark