On April 20, 2018, a number of employees at the regional BAMF office in Bremen were accused of having illegally accepted hundreds of asylum applicants between 2013 and 2017, mainly from Iraq's Yazidi community. Bremen public prosecutors announced that six people, including the former director of the Bremen BAMF office, were under investigation for alleged corruption in about 1,200 cases.

Steffen Seibert, spokesman for German Chancellor Angela Merkel, reacted swiftly to the allegations, saying it would be wrong to speculate on what consequences the incident could have for the BAMF immigration offices. He said that the "extremely serious allegations" would first have to be resolved. The BAMF scandal could be a major embarrassment to Chancellor Merkel's open-door policy to refugees.

A few weeks into the scandal, German media reported that 13 further regional BAMF branches were going to be subject to checks regarding their approval of asylum applications. The branches had apparently come under scrutiny for showing noticeable differences in the number of asylum applications accepted or rejected in comparison to other offices. Some 8,000 applications will have to be re-checked.

A month into the scandal, details emerged that BAMF had been informed about the possible improprieties in Bremen earlier than thought, German news magazine Der Spiegel reported. The irregularities were reportedly flagged back in February 2017. In the light of the growing scandal, BAMF head Jutta Cordt announced that some 18,000 asylum decisions made in Bremen since 2000 now had to be re-checked.

German Interior Minister Horst Seehofer meanwhile confirmed that he would testify before a special meeting of the Bundestag internal affairs committee to be convened at the request of the Green Party. The committee hopes to avoid a full-blown parliamentary investigation, which two other opposition parties — the populist Alternative for Germany (AfD) and the center-right FDP — are calling for.

This might be the man who would have to answer some serious questions if a comprehensive parliamentary inquiry should be launched. Thomas de Maiziere was Germany's interior minister until the beginning of the year, overseeing the management of asylum application at the height of the refugee crisis. De Maiziere, an ally of Merkel's, criticized the shortcomings of the assessment system in the past.

On May 23, the German Interior Ministry prohibited the regional BAMF office in Bremen from deciding whether individual refugees will be given asylum in the country. Seehofer said an internal BAMF report had shown that "legal regulations and internal policies" had been "disregarded" at the center.

The city of Bremen has said Germany's Federal Criminal Police are now part of the inquiry into the wide-ranging corruption. The decision came after a crisis meeting on the scandal surrounding the city's asylum procedure for refugees.

In late 2014, with the war in Syria approaching its fourth year and Islamic State making gains in the north of the country, the exodus of Syrians intensified. At the same time, others were fleeing violence and poverty in countries such as Iraq, Afghanistan, Eritrea, Somalia, Niger and Kosovo.

Vast numbers of Syrian refugees had been gathering in border-town camps in neighboring Turkey, Lebanon and Jordan since 2011. By 2015, with the camps full to bursting and residents often unable to find work or educate their children, more and more people decided to seek asylum further afield.

In 2015 an estimated 1.5 million people made their way on foot from Greece towards western Europe via the "Balkan route". The Schengen Agreement, which allows passport-free travel within much of the EU, was called into question as refugees headed towards the wealthier European nations.

Tens of thousands of refugees were also attempting the perilous journey across the Mediterranean on overcrowded boats. In April 2015, 800 people of various nationalities drowned when a boat traveling from Libya capsized off the Italian coast. This was to be just one of many similar tragedies - by the end of the year, nearly 4,000 refugees were reported to have died attempting the crossing.

Countries along the EU's external border struggled to cope with the sheer number of arrivals. Fences were erected in Hungary, Slovenia, Macedonia and Austria. Asylum laws were tightened and several Schengen area countries introduced temporary border controls.

Critics of German Chancellor Angela Merkel's "open-door" refugee policy claimed it had made the situation worse by encouraging more people to embark on the dangerous journey to Europe. By September 2016, Germany had also introduced temporary checks on its border with Austria.

In early 2016, the EU and Turkey signed an agreement under which refugees arriving in Greece could be sent back to Turkey. The deal has been criticized by human rights groups and came under new strain following a vote by the European Parliament in November to freeze talks on Turkey's potential accession to the EU.

With anti-immigration sentiment in Europe growing, governments are still struggling to reach a consensus on how to handle the continuing refugee crisis. Attempts to introduce quotas for the distribution of refugees among EU member states have largely failed. Conflicts in the Middle East and elsewhere show no signs coming to an end, and the death toll from refugee sea crossings is on the rise.