“The Islamic State of Iraq and the Sham continues its lightning advance southward after seizing control of Mosul, the country’s second largest city, and the province of Ninewa and other areas of Salahaddin and Kirkuk provinces yesterday. ISIS has now captured the Salahaddin cities of Bayji, which has Iraq’s largest oil refinery, and Tikrit, the provincial capital.”
Source: ISIS takes control of Bayji, Tikrit in lightning southward advance – The Long War Journal