The EU is beginning a new operation in the southern Mediterranean to intercept boats smuggling migrants.
Under Operation Sophia, naval vessels will be able to board, search, seize and divert vessels suspected of being used for people smuggling.
Until now, the EU has focused on surveillance and rescue operations.
So far this year, more than 130,000 migrants and refugees have crossed to Europe from the north African coast. More than 2,700 have drowned.
However, many more migrants and refugees - mainly Syrians fleeing the country's civil war - are taking a different route. They are crossing overland into Turkey, before a short journey by sea to European Union member
Read more: Migrant crisis: EU to begin seizing smugglers' boats - BBC News