WikiLeaks has published a second set of documents from last year’s hacking of Sony Pictures Entertainment.

276,394 documents have been added to WikiLeaks’ initial database, which includes about 30,287 documents and 173,132 emails.

WikiLeaks said in a Twitter post that the new documents contain sensitive legal papers, including an incident related to a bribery investigation.

In a statement published in April, WikiLeaks founder Julian Assange defended the organisation’s decision to post the documents online.

Assange said: "This archive shows the inner workings of an influential multinational corporation. It is newsworthy and at the centre of a geo-political conflict. It belongs in the public domain. WikiLeaks will ensure it stays there."

Sony discovered the cyberattack in November 2014 when the image of a red skeleton appeared on its computers across the Culver City studio in California.

Hackers from North Korea were alleged of undertaking the attack in response to the release of a comedy film which portrays Kim Jong Un negatively.