Scores of migrants are stuck on the Greece-Macedonia border after they were not allowed to continue their journey.
Groups of people tried to warm up around bonfires on a cold night on the Greek side of the border.
About six migrants had earlier sewed their lips together in a protest.
Last week, Macedonia and other Balkan nations said that they would only let in people fleeing conflicts in countries such as Syria, Iraq and Afghanistan.
Hundreds of migrants have been protesting for several days against this decision.
