Kids are among the most vulnerable as it gets colder in Greece's refugee camps.
"There is no difference if you're in the tent or outside," refugee and father of four Azzizola Sedarat said.
Aid groups are trying to distribute clothing, blankets and other cold-weather aid, but there's currently not enough to go around.
Right now, 10,000 refugees are stuck in tents. Greek officials and the United Nations are working to install cabins, but some humanitarian groups say many won't get permanent walls or heating.