North Korea spy satellite explodes in flight as latest launch fails

Cause of accident was ‘operational reliability of engine’, says Pyongyang, after two failed attempts last yearNorth Korea’s latest attempt to put a spy satellite into orbit ended in a mid-air explosion, Pyongyang said late Monday, hours after its announcement of a planned launch was criticised by Seoul and Tokyo.Japanese broadcaster NHK ran footage of what appeared to be a flaming projectile in the night sky, which then exploded into a fireball. NHK said the footage was taken f