US President Barack Obama has said that Al Qaeda leader Osama bin Laden, who lived in a compound in Abbottabad for six years, had some kind of support infrastructure inside Pakistan. Mr Obama told the CBS TV channel that Pakistani government should conduct an investigation into how Osama was able to live so long in a military cantonment area of Pakistan, in an affluent suburb of Islamabad. The US has also demanded access from Pakistan to all non combatants, including Osama bin Laden's three wives, detained by the Pakistani authorities and additional materials recovered from the Abbottabad compound. This was disclosed by US National Security Advisor Tom Donilon. In an interview to ABC News, Donilon said, the US needs to work with Pakistan to investigate what happened and how Osama bin Laden came to this place and stayed there for six years. Pakistan gained custody of bin Laden's three wives and eight children on Monday last after a covert US operation that killed the al-Qaida chief at his hideout in Abbottabad. The Pakistani military yesterday again took control of the compound triggering rumours that the structure will be demolished so that it does not become a shrine for jihadists. Meanwhile, Pakistan's media regulatory watchdog has barred live broadcasts by international media from Abbottabad. Almost all foreign journalists yesterday left the garrison city on the orders of authorities. Pakistan's decision to clamp down foreign journalists is being linked to the government and military's unease over coverage of perceived failures of security agencies in detecting bin Laden's presence in a city located just 120 km from Islamabad.