In the grip of conflict for two years, Syrian children have been forced from their homes and are spending this winter frightened and cold.
As the freezing weather worsens, UNICEF has now declared the crisis in Syria and its neighbouring countries to be the highest level of emergency for children.
This photo was taken in January in the Za'atari refugee camp in northern Jordan. The tent belonging to this boy and his family been flooded, and they have had to be evacuated while an alternative place to stay can be found.
© UNICEF/Louise Lane/Jordan 2013
Children are struggling to survive in the coldest temperatures to hit the region in 10 years.
UNICEF is on the ground, working with our partners to supply families with blankets and warm clothes.
We're also running child-friendly spaces where children can be safe, vaccinating against life-threatening diseases, providing clean drinking water, and helping children who have suffered psychological trauma.
Your support could make all the difference.
©UNICEF/2013/Ramonedars
Severe winter weather has hit the region in the past months, causing flooding in refugee camps.
Many tents have been destroyed and some areas are blanketed in snow.
©UNICEF/2013/Ramonedars
This photo was taken in Za'atari camp in January 2013. Boys gather round a fire above the frosty ground. The winter has been punishing so far, and the weather will only get colder.
© UNICEF/Helen Pattinson/Jordan 2013
Clothing kits are being supplied by UNICEF for vulnerable children. Each kit contains thermal underwear, long trousers, a woolen sweater, socks, gloves and a hat, shoes and a winter jacket.
We have prepared half a million school bags, each containing stationary, so children can continue their education within refugee camps.
©UNICEF/Jordan-2012/Khaled Al Masri
Whole families have been displaced as a result of the conflict, including little babies like this one.
There is concern about the impact winter will have on children's health. Children are already fragile from the ongoing stress associated with displacement and conflict.
©UNICEF/Jordan-2012/Khaled Al Masri
UNICEF has been on the ground since the crisis in Syria began, vaccinating children against life-threatening diseases, as well as providing clean water and school lessons, and care for children who have experienced trauma.
©UNICEF/Jordan-2012/Khaled Al Masri
Since conflict broke out many Syrian children fled their homes with only light summer clothing. They are now in desperate need of something warmer to wear.
UNICEF has sent over 100,000 clothing kits and 160,000 blankets - we need more supplies to protect these children from the winter cold.
©UNICEF/Jordan-2012/Khaled Al Masri