Al Qaeda leader calls for blood

Al Qaeda's new leader in Iraq, Abu Hamza al-Muhajir, says the country's Sunni politicians are treacherous and warns of more attacks against United States-led forces.

An internet audio tape says: "The fire has not and will not be put out and our swords, which have been coloured with your blood are thirsty for more of your rotting heads."

Muhajir called on Muslims to unite and asked each insurgent to kill one American in the next 15 days.