WRAPUP 1-N.Korea says did not hack Sony, wants joint probe with U.S.
December 20, 2014 at 06:37 AM EST
SEOUL/WASHINGTON, Dec 20 (Reuters) - North Korea said U.S. accusations that it was involved in a cyberattack on Sony Pictures were "groundless slander" and that it was wanted a joint investigation into the incident with the United States.
