More than 1 million people have fled Syria since civil war began , the U.N. says . The United Nations estimates that more than 2 million Syrians are in need of humanitarian assistance and has called for a "massive international response" to help them escape violence. Surrounding countries are feeling the strain due to the influx of refugees .
More than 1 million people have fled Syria since civil war began , the U.N. says . 8,000 people left each day last month , U.N. official says . Surrounding countries are feeling the strain due to the influx of refugees .