Via ReliefWeb, the IFRC has published Iraq: Civil Unrest Information Bulletin no. 1. Click through to download the PDF. The summary, with my bolding:
This bulletin is being issued for information only, and reflects the current situation and details available at this time. More information will be communicated soon and most likely a larger scale operation will be launched by Iraqi Red Crescent Society and IFRC response tools may be considered.
The humanitarian situation in Iraq has taken a dramatic turn with the deterioration of the security situation in the regions of Ninewa, Salaheddin, and Diyala provinces. Fighting carried out by armed groups reached several major cities in the country such as Mosul, Samara, Baquba, and Ramadi. Mosul, the second largest city of Iraq, has fallen under the control of armed groups along with most of the province of Ninewa.
Accurate figures of casualties are unavailable, but reports claim the figures stand in the hundreds. 500,000 people are estimated to have become IDPs and moved to locations like Erbil, Dohuk and Basheeqa.
The Iraqi Red Crescent Society had immediately responded and activated operations rooms in Erbil, Dohuk, Sulaimaniah and Kirkuk governorates (close to Ninawa governorate) and started to mobilize all resources to assist the displaced families by providing food aid, water and tents.