Ninawa governor says attacks in Mosul have forced the displacement of many families.
More than 50 Iraqi Christians were killed when an al-Qaeda-linked group attacked a Baghdad church last Sunday.
The assault has reverberated among Iraqi Christians in the West.
The leader of one such church in London believes it is time for Iraq’s 300,000-strong Christian minority to leave the country.
Al Jazeera’s Jonah Hull reports from West London.