MOSCOW - Russia is seriously worried by North Korea's declared readiness to use its nuclear weapons, Kremlin spokesman Dmitry Peskov said on Friday. 'This raises pretty serious concerns,' Peskov told a teleconference with journalists. 'We hope that all countries in the region will maintain restraint and a balanced attitude.' North Korean leader Kim Jong Un has ordered his country to be ready to use its nuclear weapons at any time and the military to be in 'pre-emptive attack' mode in the face of growing threats from its enemies, state media said on Friday.
