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TOPSHOT - Syrian refugees, stuck between the Jordanian and Syrian borders, wait to cross into Jordan, at the Hadalat border crossing, east of the Jordanian capital Amman, on January 14, 2016. The number of Syrian refugees stuck on the border with Jordan has climbed from 12,000 to nearly 16,000 since December, the kingdom's government spokesman said on January 11. / AFP / KHALIL MAZRAAWI / TO GO WITH AFP STORY BY MUSSA HATTAR (Photo credit should read KHALIL MAZRAAWI/AFP/Getty Images)

TOPSHOT - Syrian refugees, stuck between the Jordanian and Syrian borders, wait to cross into Jordan, at the Hadalat border crossing, east of the Jordanian capital Amman, on January 14, 2016.
The number of Syrian refugees stuck on the border with Jordan has climbed from 12,000 to nearly 16,000 since December, the kingdom's government spokesman said on January 11. / AFP / KHALIL MAZRAAWI / TO GO WITH AFP STORY BY MUSSA HATTAR        (Photo credit should read KHALIL MAZRAAWI/AFP/Getty Images)