Syrian refugees shelter in abandoned Lebanon abattoir
3 September 2013 Last updated at 17:02 BST
An estimated 3,000 Syrians are entering Lebanon every day, seeking refuge from the escalating tension in Syria.
More than two million Syrians are now registered as refugees, after the total went up by a million in the past six months, according to the UN refugee agency.
The BBC's Quentin Sommerville visited a former slaughterhouse in Lebanon which has become a refuge for families escaping the conflict in Syria.