|PIC1|Thousands of Iraqi Christians living in the northern city of Mosul fled for their lives this past week, many leaving behind everything and, as one refugee put it, taking "only our souls".

At least 744 Christian families, or about 3,750 people, fled the city dubbed by US and Iraqi commanders as the last urban stronghold of Al-Qaeda for refuge with relatives in churches and at Christian centres in several towns and villages to the north and east of Mosul, according to the UK-based persecution watchdog ministry, Barnabas Fund. Some are even sleeping in their cars.

These displaced Iraqi Christians are said to be in desperate need of food, clothing, bedding, personal hygiene items and other basic necessities.

"We left everything behind us. We took only our souls," said Ni'ma Noail, 50, a civil servant who was forced by the violence to abandon his home in Mosul and is now living in a church, according to Barnabas Fund.

The US condemned the attacks on Tuesday attacks on Iraqis, including those against Christians in Mosul.

"The terrorist groups responsible for these attacks have shown again that their enemy is the Iraqi civilian population," the US embassy said in a statement. "They are seeking to create divisions among Iraqi communities and undermine the progress Iraq is making in building an inclusive, democratic and prosperous society."

Mosul, the capital of Ninewa province, is home to the second-largest Christian community in Iraq, after Baghdad. Many Christians from Baghdad and Basra have fled to the north for safety in recent years.

The original city of Mosul lies on the west bank of the Tigris River, opposite the ancient biblical city of Nineveh on the east bank. Mosul contains the tombs of several Old Testament prophets, including Jonah and Nahum.

Last week's mass exodus from Mosul was triggered by the heightened violence targeted at Christians recently. More than a dozen Christians were murdered in the last two weeks alone, including three people within a 24 hour period last Tuesday.

Bullet-riddled bodies of Christians killed by unknown assailants were found in several different neighbourhoods in the city. The latest death was of a Christian music store owner shot dead on Sunday.

Gunmen stormed into his store in the eastern part of the city, killing him and wounding his teenage nephew, a police officer reported Monday, according to The Associated Press.

Also, leaflets have been distributed in Mosul threatening Christians with death unless they converted to Islam or paid the Islamic jizya tax for non-Muslims, Barnabas Fund reported.

"The situation in Iraq is extremely grave. Sunni Muslim extremists are moving north, now that they have successfully managed to intimidate and drive out most of the Christians from the cities of Basra in the south and Baghdad in the centre of Iraq," said Dr Patrick Sookhdeo, international director of Barnabas Fund.

He appealed to the Iraqi Government and the US army to quickly intervene to "prevent the elimination of the indigenous Christian community" in Iraq.

"I also appeal to Christians around the world to help meet the practical needs of their Iraqi brothers and sisters at this time through the ministry of Barnabas Fund," said Sookhdeo, a former Muslim and an expert on jihadist ideology.

The "major displacement", as the governor of Ninewa province calls it, follows news that the Iraqi Parliament recently voted to drop a clause in its new provincial election law which had previously prevented the marginalisation of the Christian voice in Iraq by reserving seats on Provincial Councils for Christians and other minorities.

Some Iraqi Christians accuse the government of trying to push the remaining Christians to leave Iraq.

"They want us to feel that we are no longer Iraqis," worshipper Afram Razzaq-Allah said after a services at a Catholic church in Baghdad, according to AP.

Since the US-led Iraq war in 2003, more than 200 Christians have been killed, dozens of churches bombed, and more than half the Iraqi Christian population has left the country.

UN special representative Staffan de Mistura expressed concern Monday about the rising violence targeted at Christians in recent days, and has called for the Parliament to reinstate Article 50.