About 400,000 Syrians have registered as refugees across Lebanon, according to the United Nations, but many more are undocumented.
Syrian Refugees in Lebanon

1
A boy shields himself from the rain at a refugee camp in Tyre, southern Lebanon, Jan. 31, 2013.

2
A Syrian refugee carries her sister in Ketermaya village southeast of Beirut, Lebanon, March 14, 2013.

3
Syrian refugees make their way through a flooded temporary camp in Al-Faour, Lebanon, near the border with Syria.

4
Syrian boys look outside their tent in Marj, Lebanon.