Baghdad. More than 21,500 Syrian refugees had fled the violence in their home country and registered in neighbouring Iraq as of Friday, according to the UN Refugee Agency(UNHCR).

More than 13,000 Syrian refugees have fled to the Region of Kurdistan since Syria crisis.

The UNHCR's Syria Regional Refugee said that 21,744 Syrians have registered in Iraq, while the number still waiting to register is unknown, meaning that the total number of Syrian refugees in Iraq is likely to be higher.

Bashar al-Assad's deadly crackdown on the uprising against his rule has sparked an exodus of Syrians to neighbouring states.

According to the UNHCR, most of the registered Syrian refugees in Iraq - 13,997 - are in Dohuk province in Kurdish Region, which hosts the Domiz refugee camp and which is one of provinces of the Kurdistan region.