Joanna Kakissis

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 ...

Hundreds of migrants camping in the square in Budapest rushed into the station, desperately trying to board trains for western Europe. All trains to the west have been canceled.

Many of the migrants waiting outside the rail station in Budapest hoping to get to Germany are showing the effects of exhaustion, malnutrition and days of sleeping rough. Now some Hungarians are trying to help.

The Hungarian authorities first allowed hundreds of refugees to take trains from Budapest to Germany. Then on Tuesday, they refused to allow migrants to travel — even those who had purchased tickets.

The Hungarian authorities closed the international rail terminal in Budapest to migrants Tuesday after many purchased tickets to Germany.

Afghan refugees are camped out in an Athens park, waiting for papers to get out of Greece. They live in donated tents and get clothes, medicine and food from volunteers — including fellow migrants.

Munzar Omar, a teacher from Syria, left his wife and children behind as he searches for a safer home for them. He's one of hundreds of thousands fleeing war in Syria and heading towards Europe.

Hundreds of thousands of migrants risk their lives to reach Europe. But when they get to the continent their journey isn't over. Most go on at more risk and greater cost to reach Germany and Sweden.

Macedonia has re-opened its border with Greece to refugees after declaring a state of emergency and firing tear gas at them. We meet one Syrian family caught in the cross-border chaos.