Warnings grow that extremists are becoming more sophisticated and more violent

The number of undocumented migrants in the EU is unknown but some cities are realising that ‘get-tough’ policies do not work

E-mail urging police to restrict information to media causes outcry

Interior minister also determined to close all Roma camps

Discussions to examine how Cairo can help cut numbers in return for economic benefits

Food couriers highlight country’s changing migration and work patterns

Thousands to be moved from Greek island camps to make space in case of mass arrivals

Plan is part of effort to bridge bloc divides on migration policy

Rise of the nationalist Democrats presents complications on route to top

Cadre would have powers to bear arms and operate outside bloc

Research suggests migrants account for two-thirds of US GDP expansion since 2011

Cheers and jeers greet anti-immigrant party in run-up to crucial poll

Defence agency reports that most accounts support anti-immigration party

Rising inequality and immigration growth form background to next month’s general election

Challenge of fighting misleading and exploitative recruitment on social media

Luigi Di Maio accused of ‘double standards’ by Italy’s opposition parties

Europe’s passport-free area under pressure as calls grow for tougher migrant controls

European Commission responds that unconstructive ‘threats don’t work’

Governing centre-left party under threat over response to crime and immigration

Isolated by the political mainstream, the Sweden Democrats could become one of the biggest parties

New PM Sánchez has been more accommodating but critics say country is under strain

Berlin seeking agreements with EU countries to ease domestic pressure over refugees

Parliament gives formal approval to send more patrol boats