Jihadists have launched fresh attacks on Christian areas in north Iraq, sparking a new wave of displacement, the country's Chaldean patriarch and witnesses said Wednesday.

Towns shelled in the past few days by Islamic State of Iraq and Greater Syria (ISIS) militants include Tal Kayf, Bartella and Qaraqosh, according to Christian sources.

The towns are among many in the area where thousands of Christians who were forced to abandon their homes in the main northern city of Mosul last month had found refuge.

The town of Bartella had also been attacked by the jihadists, sparking an exodus, according to Sako.

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