North Korea says Trump declared 'war', threatens to shoot down US strategic bombers

North Korea's foreign minister said on Monday that President Donald Trump had declared war on North Korea and that Pyongyang reserves the right to take countermeasures, including shooting down US strategic bombers even if they are not in the country's air space.

"The whole world should clearly remember it was the US who first declared war on our country," Foreign Minister Ri Yong Ho told reporters in New York.

"Since the United States declared war on our country, we will have every right to make countermeasures, including the right to shoot down United States strategic bombers even when they are not inside the airspace border of our country."