Prime Minister David Cameron last night pledged to release secret Cabinet papers on the 1989 Hillsborough tragedy, according to The Mirror.

The move comes after 140,000 people forced a Commons debate by signing an e-petition in favour of releasing the documents.

The incident, which resulted in the deaths of 96 Liverpool fans, was initially blamed on the behaviour of drunken supporters, but a later inquiry by Lord Justice Taylor placed responsibility on police failings and poor stadium organisation.

Cameron's pledge to release the files was welcomed by Chair of the Hillsborough Justice Campaign, Margaret Aspinall.

"It's important that we get these Cabinet minutes," Aspinall said. "You can't have the whole truth of Hillsborough without them and we've been shouting to have them released for 22 years. We hope all documents will be released with no censorship."

The Mirror quotes a letter from Mr Cameron to Labour MP Andy Burnham saying: "The Government is committed to full disclosure of the Hillsborough information it holds. We have proposed that disclosure takes place to the families prior to wider publication."

The issue of full disclosure will be debated today in the House of Commons, with MPs expected to vote in favour.