16 December 2014
Last updated at 20:56
Hackers targeting Sony Pictures have threatened to attack US cinemas showing the studio’s film The Interview.
The group, calling themselves Guardians of Peace, mention the 9/11 attacks in their warning, claiming “the world will be full of fear”.
The hackers also released more data stolen from Sony’s computer networks.
It is believed the attacks were triggered by Sony’s new film, a comedy that features a plot to assassinate North Korea’s leader Kim Jong-un.
“Remember the 11th of September 2001. We recommend you to keep yourself distant from the places at that time,” the hacker group wrote in a message on Tuesday.
“If your house is nearby, you’d better leave,” they add. “Whatever comes in the coming days is called by the greed of Sony Pictures Entertainment.”
The Interview stars James Franco (left) and Seth Rogen
The group also released a new trove of Sony company data, calling it a “Christmas gift”.
A cache of company emails, social security numbers and salary details had already been released.
On Tuesday, two former Sony Pictures employees sued the California company for not providing adequate security to prevent the computer breach.
The studio earlier attempted to limit the damage by contacting some US news outlets to block the publication of the emails.
Some of the emails released have contained embarrassing exchanges about some of Hollywood’s biggest stars, among them Angelina Jolie and Leonardo DiCaprio.
Variety, the New York Times and the Hollywood Reporter were informed the studio “does not consent to your possession… dissemination, publication… or making any use of the stolen information”.
North Korea has denied involvement in the attack, but has described it as a “righteous deed” that may have been carried out by its “supporters and sympathisers”.
According to Variety’s Andrew Wallenstein, however, publishing the stolen data is “problematic but necessary” because it “is in the public domain” and “unavoidable”.