Pakistan's Prime Minister has denied he or the government knew they were harbouring the world's most-wanted man on its soil.

Yousuf Raza Gilani says Pakistan will not accept sole blame for any intelligence failure in the hunt for Osama Bin Laden, the former al-Qaeda leader who was shot dead last week in a US raid on the Pakistani town of Abbottabad.

Gilani has also warned off any other countries wanting to conduct operations in secret inside Pakistan.

Al Jazeera's Imtiaz Tyeb reports from Islamabad, the Pakistani capital.