The flight of the centuries-old Christian community from Iraq's jihadist-held second city drew messages of solidarity and pledges of aid, both from former Sunni neighbours and Shiite leaders.
In a statement posted on jihadist websites, the Islamic State (IS) praised two of its fighters -- a German and a Syrian -- for two of a spate of blasts that killed 24 people in Baghdad yesterday.
"Two knights of the knights of Islam and heroes of the caliphate were launched, Abu Qaqa al-Almani and Abu Abdulrahman al-Shami, to destroy checkpoints" manned by soldiers, police and allied Shiite militiamen, it said.
The Christian's eviction from Mosul was just the latest mass displacement in years of violence that have redrawn Iraq's ethno-sectarian map.
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"We don't know what we're going to do or what will happen to us. Will we ever to return to our homes? Will the government rid the city of terrorists?" asked Umm Ziyad, 35.
She fled Mosul on Friday with her four children and now shares a house still under construction with several other displaced families in the Christian town of Qaraqosh, 32 kilometres (20 miles) east of Mosul.
Chaldean patriarch Louis Sako said there were still around 35,000 Christians in the city before the IS launched a sweeping offensive on June 9, proclaimed a caliphate and made Mosul their main Iraqi hub.
He said all had left the city by the time the noon ultimatum expired on Saturday. A rare Christian who decided to stay was fatalistic: "I already feel dead," he told AFP.
Many residents of Mosul are afraid to speak and press access is almost impossible, but Sunnis in the city have voiced sympathy for their former Christian neighbours.