UNHCR said the number of Syrians leaving their country has increased dramatically since the beginning of the year with more than 400,000 - nearly half the total figure - moving since January 1st.
Most have fled to Lebanon, Jordan, Turkey, Iraq and Egypt and some arrive in North Africa and Europe.
- 330,000 Syrian refugees in Lebanon
- 320,000 in Jordan
- 185,000 in Turkey
- 105,000 in Iraq
- 43,500 in Egypt
Lebanon - the country closest to Syria's embattled capital of Damascus - is the smallest of the country's neighbours but has received the most refugees.
Including Syrian workers and self-supporting Syrian families, one in five people in Lebanon are now Syrian.
More top news
An Ofcom report says mistakes mean people relying on live subtitles had an 'inferior' experience to other viewers.
Waitrose is to scrap a hot drink free-for-all which allowed loyalty card holders to enjoy free drinks in its cafes without buying anything.
A new wave of antisemitism in Belgium sits uncomfortably alongside the ceremonies to remember the liberation of Auschwitz 70 years ago.