Sony hack: North Korea threatens US as row deepens

North Korea has threatened unspecified attacks on the US in an escalation of a war of words following the Sony Pictures cyber-attacks.

In a fiery statement, the North warned of strikes against the White House, Pentagon and "the whole US mainland".
North Korea denies US claims it is behind cyber-attacks linked to a film that features the fictional killing of its leader Kim Jong-un.
North Korea has a long history of issuing threats against the US.
The latest statement comes days after the US formally accused the North of orchestrating a massive cyber-attack on Sony Pictures.
"The army and people of the DPRK [North Korea] are fully ready to stand in confrontation with the US in all war spaces including cyber warfare space," a long statement carried by the official Korean Central News Agency said.
It accused US President Barack Obama of "recklessly making the rumour" that North Korea was behind the Sony attack.
Separately, North Korea said it would not attend Monday evening's UN Security Council meeting discussing the country's human rights record.
Last week, the UN General Assembly passed a resolution calling on the Security Council to refer North Korea to the International Criminal Court to face charges of crimes against humanity.
A UN report released in February revealed ordinary North Koreans faced "unspeakable atrocities", including "deliberate starvation, forced labour, executions, torture" and political repression.
China, North Korea's main international ally, is expected to block any move against the country.
Sony details leaked The Sony hack resulted in unreleased films and the script for the next James Bond movie being leaked online.
Details of corporate finances and private emails between producers and Hollywood figures were also released.
The eventual fallout from the attack saw Sony cancel the Christmas release of a comedy called The Interview, a film depicting the assassination of the North Korean leader.
That decision followed threats made by a group that hacked into Sony's servers and leaked sensitive information and emails.
The North has denied being behind the attacks, and offered to hold a joint inquiry with the US.
But the US turned down the offer, and President Obama said it was considering putting the North back on its list of terrorism sponsors, a move that further angered Pyongyang.
North Korea had been on the US list of state sponsors of terrorism for two decades until the White House removed it in 2008, as part of now-stalled negotiations relating to Pyongyang's nuclear programme.
In an interview with CNN on Sunday, Mr Obama promised to respond "proportionately" to the cyber-attack.
"I'll wait to review what the findings are," he said, adding that he did not think the attack "was an act of war".
The US has reportedly also asked China to curb cyber-attacks by North Korea.