Children walk in the mud after heavy rainfall in a makeshift camp in Lesbos, Greece, Friday, December 13.
Refugees and migrants wore raincoats and took shelter in plastic-covered tents set up near large piles of garbage.
More than 100,000 migrants and refugees are currently in Greece according to UNHCR, almost 40,000 of them stranded on Aegean islands.
The Greek government has started transferring migrants to the mainland to ease overcrowding. They said they intend to transfer 20,000 people by 2020 and plan to speed up returns and the asylum process.
Human rights organizations have repeatedly said conditions on the islands are inhumane and dangerous and the EU needs to share the burden. (VOA/REUTERS)