A man works at a refugee camp under construction in Zarqa, which is to be opened as Jordan's second camp to cope with the rising inflow of Syrian refugees and reduce over-crowding in Za'atari, Jordan, Feb. 7, 2013. Jordan announced on Tuesday that the number of Syrian refugees in the country is expected to exceed 700,000 in 2013. (Xinhua/Mohammad Abu Ghosh)

A man works at a refugee camp under construction in Zarqa, which is to be opened as Jordan's second camp to cope with the rising inflow of Syrian refugees and reduce over-crowding in Za'atari, Jordan, Feb. 7, 2013. Jordan announced on Tuesday that the number of Syrian refugees in the country is expected to exceed 700,000 in 2013. (Xinhua/Mohammad Abu Ghosh)

A man works at a refugee camp under construction in Zarqa, which is to be opened as Jordan's second camp to cope with the rising inflow of Syrian refugees and reduce over-crowding in Za'atari, Jordan, Feb. 7, 2013. Jordan announced on Tuesday that the number of Syrian refugees in the country is expected to exceed 700,000 in 2013. (Xinhua/Mohammad Abu Ghosh)

Photo taken on Feb. 7, 2013 shows a refugee camp under construction in Zarqa, which is to be opened as Jordan's second camp to cope with the rising inflow of Syrian refugees and reduce over-crowding in Za'atari, Jordan. Jordan announced on Tuesday that the number of Syrian refugees in the country is expected to exceed 700,000 in 2013. (Xinhua/Mohammad Abu Ghosh)

Photo taken on Feb. 7, 2013 shows a refugee camp under construction in Zarqa, which is to be opened as Jordan's second camp to cope with the rising inflow of Syrian refugees and reduce over-crowding in Za'atari, Jordan. Jordan announced on Tuesday that the number of Syrian refugees in the country is expected to exceed 700,000 in 2013. (Xinhua/Mohammad Abu Ghosh)

 Workmen walk at a refugee camp under construction in Zarqa, which is to be opened as Jordan's second camp to cope with the rising inflow of Syrian refugees and reduce over-crowding in Za'atari, Jordan, Feb. 7, 2013. Jordan announced on Tuesday that the number of Syrian refugees in the country is expected to exceed 700,000 in 2013. (Xinhua/Mohammad Abu Ghosh)