Thousands of refugees from Syria are pouring over the border into Iraqi Kurdistan, the UN refugee agency says.
Up to 10,000 crossed at Peshkhabour on Saturday, bringing the total influx since Thursday to 20,000. The UN says the reasons are not fully clear.
The UN High Commissioner for Refugees (UNHCR) says this is one of the biggest single waves of refugees it has had to deal with since the uprising against the rule of Syrian President Bashar al-Assad began in March 2011.
Some 150,000 Syrian refugees are already registered in Iraq, of the nearly two million said to have fled Syria in total since the uprising began.
The proximate reason seems to have been that someone (the story does not say who) built a pontoon bridge over the Tigris River separating Syria from Iraq in the northeast corner of Syria. People want to get out of Syria and it seems that all of a sudden they had a way to do it. This seems to make as much sense as anything associated with the two and a half year disintegration of Syria.