Why are migrants coming to Europe?
20 October 2015 Last updated at 07:39 BST
Over the past few months, thousands of migrants and refugees have been travelling to Europe to start a new life.
Many are trying to escape from countries affected by war such as Syria, Afghanistan, Eritrea, and also North Africa.
Some say they're coming to Europe looking for better opportunities for their children.
Leah explains what's been going on.