नार्थ कोरिया प्रशांत क्षेत्र में कर सकता है हाइड्रोजन बम का परीक्षण: विदेश मंत्री

North Korea: Kim Jong Un calls US President Trump 'deranged', says he will 'pay dearly' for his threats. He also described the US president as "a rogue and a gangster fond of playing with fire."