North Korea rolls out submarine-launched missiles at military parade

Kim Jong-un smiles and waves at huge parade in Kim Il-sung Square, Pyongyang, designed to show military progress

North Korea has included a developmental ballistic missile designed for launch from submarines in the military hardware put on show at a parade that punctuated leader Kim Jong-un's calls to expand his nuclear weapons program.

Thursday night's parade celebrated a major ruling party meeting at which Kim vowed maximum efforts to bolster his nuclear and missile program to counter what he described as US hostility.