Joanna Kakissis

The Greek coast guard has arrested 5 foreign members of volunteer rescue teams trying to help migrants crossing between Turkey and the Greek islands. They may be charged with aiding human trafficking.

Slovakia has never been particularly welcoming to migrants and it resisted the most recent influx to Europe. Those who came a generation ago say they are still often seen as outsiders.

Greeks had to confront creditors with an untested leader at the helm, deal with more austerity measures, economic overhauls and take in thousands of migrants from the Middle East and Africa.

Greece and the EU are in a blame game over responsibility for handling the flood of migrants into the country. Even with more EU help, Greek authorities are relying on volunteers to help save lives.

Macedonia is blocking the path of migrants trying to head north, deeper into Europe. Greece is taking them back from the border to Athens, even as hundreds more arrive at the frontier every day.

Greek police cleared hundreds of asylum-seekers away from a border crossing with Macedonia. With the Macedonia's border closed to all but three nationalities, other migrants are in limbo.

The hotel is staffed by refugees from countries including Afghanistan, Nigeria and Algeria. It serves as a model for how to train newcomers to work in the European countries where they claim asylum.

The suspected organizer of the attacks was confirmed to be among those killed in a police raid in a suburb of the French capital. The attacks add to worries that extremists are among the migrants.

Many worry that among the migrants are extremists. Is that view shared by migrants and those who work with them? And in the French city of Marseilles, a teacher at a Jewish school was stabbed.

There's still such a chill in Paris. A Muslim leaving a mosque says people have been giving him dirty looks. On the Greek island of Lesbos, authorities are under pressure to step up migrant screening.

Greece is struggling to screen asylum seekers and migrants quickly on the island of Lesbos. Migrants are arriving in record numbers, and the EU wants Greece to accommodate more.

Lesbos is now the main entry point into Europe for thousands of refugees and migrants. It's also a magnet for volunteers from all over the world. We meet a group who aid refugees who crossed the sea during a rainstorm.

It's not just shady smugglers profiting off the misery of refugees pouring into Europe. A Pakistani entrepreneur is tracking the flow of the human river, looking for spots to set up all-service cafes.

Editor's note: Monzer Omar is one of the more than 4 million Syrians who have fled their homeland since war erupted in that country in 2011. NPR correspondents Ari Shapiro and Joanna Kakissis followed him as he made his way from the Turkish coast to Central Europe in search of ...

The prospect of tighter border controls in Germany, Hungary and elsewhere in Europe hasn't curbed the flow of migrants seeking passage from the Middle East, mainly via Turkey and Greece.

The latest stage on the journey of a former teacher fleeing the war in Syria, who is hoping to find a new home for himself and his family in Germany.

Editor's Note: Back in February, NPR published this look at Syrian refugees entering Europe. The crisis has only intensified since then and we are republishing the original report.

Some of the figures have changed. For example, there are now more than 4 million Syrian refugees, up from 3.8 million ...