The U.S. has urged whistle-blowing website WikiLeaks, and its founder, Julian Assange, not to release any more secret classified documents.

"We can do nothing but implore the person who has those classified top secret documents not to post anymore," The News quoted Robert Gibbs, White House spokesman, as saying.

"I think it's important that no more damage be done to our national security," he added.

Earlier, on Monday, Assange had said that his company had held back some 15,000 files from the documents it received in the leak.

He said that those documents were being reviewed, and will be released soon.

WikiLeaks has released over 90,000 secret US documents, which includes details of Afghan civilian deaths, covert operations against the Taliban and proof that Pakistan is aiding the Taliban to organize networks of militant groups that fight against American soldiers in Afghanistan.

The documents called the 'Afghan War Diaries, 2004-2010', represents one of the biggest leaks in U.S. military history. (ANI)