London: Osama Bin Laden was in routine contact with several senior figures from Pakistan's military intelligence agency while in hiding in the country, according to a large cache of secret intelligence files.

The disclosure was contained in emails from the private American security company, Stratfor, which were published by WikiLeaks website on Monday after being obtained by the Anonymous hacking group.

Stratfor provides analysis of world affairs to major corporations, military officials and government agencies and was once likened by an American business magazine to a "shadow CIA".

According to one of the emails, the company was shown the information papers collected from Bin Laden's Abbottabad compound after the US special forces attack last May that resulted in his death.

Safe house

The email, from a Stratfor analyst, suggested that up to 12 officials in Pakistan's Inter-Services Intelligence (ISI) agency knew of the Al Qaida leader's safe house. The internal email did not name the Pakistani officials involved but said the US could use the information as a bargaining chip in negotiations with Islamabad after the raid.

American officials have always believed it was impossible for the ISI not to have known that Bin Laden was sheltering in a garrison town so close to Islamabad. Pakistan has repeatedly dismissed the charge. "Mid to senior level ISI and Pak Mil with one retired Pak Mil General that had knowledge of the OBL arrangements and safehouse," the email said of the officers involved.

WikiLeaks claimed to have five million Stratfor emails that it would publish in collaboration with media outlets.