President Barack Obama says the al-Qaeda leader Osama Bin Laden has been killed by US forces in Pakistan.

Bin Laden is believed to be the mastermind of the attacks on New York and Washington on 11 September 2001 and a number of others.

He was killed in a ground operation at the compound where he was hiding, in the town of Abbottabad.

Footage from inside the building showed scenes of disarray, and bloodstains on the floor. Steve Kingstone reports.

Footage courtesy of ABC News