North Korea refuses to deny involvement in Sony Pictures hack attack

North Korea has reportedly refused to deny its involvement in a hack attack on Sony Pictures just ahead of the release of a film on leader Kim Jong-un.

When asked if it was involved in the cyber attack, a spokesman for the North Korean government said, "Wait and see."

North Korea registered a complaint with the United Nations and the United States over the comedy film, The Interview. The movie shows Seth Rogen and James Franco playing two reporters who are granted an audience with Jong-un and are then enlisted by the Central Investigative Agency (CIA) to assassinate him, reported the BBC.

Terming the film "an act of war" and "undisguised sponsoring of terrorism," North Korea called on the U.S. and the UN to block it.

The hack attack shut down Sony's computers and made unreleased films available on the internet. The company said on Monday that it had restored a number of services that had to be shut down after the attack.

It said it was working closely with the law enforcement officials to investigate the attack but made no mention of North Korea.