N Korea vows to 'redouble strength' in response to sanctions

North Korea has vowed to "redouble the efforts to increase its strength to safeguard" itself after the latest round of UN sanctions got imposed over its nuclear and ballistic missile programme. Describing the sanctions as "evil and illegal", North Korea said the sanctions are "a product of heinous provocation aimed at depriving the DPRK of its legitimate right to self-defence."