The origin of the fire, which has forced the evacuation of 13,000 people living in the world's largest refugee camp, is unknown. Brussels has agreed to finance the immediate transfer of 400 minors to the continent.
Olga Margalef was in Lesvos when scores of refugees were arriving. Anna Sorio visited Petra, after the makeshift camps were being dismantled and the official military camps set up. What has changed?