German refugee centres are not offering adequate protection for members of minority faiths, especially converts from Islam to Christianity, according to study published Monday by the Christian organization Open Doors Germany.
A report from the international mission, which was set up to support persecuted Christians around the world, said half of the 231 Christian refugees questioned in its survey reported being disadvantaged or bullied by Muslim migrants or guards.
Most of the migrants taking part in the survey came from Afghanistan or Iran.
A Protestant minister from Berlin said Christian refugees had been threatened after they refused to take part in an Islamic prayer organized by other migrants.
The Christian organization proposed that German authorities keep Christians, Yezidis and other non-Muslims together in larger groups in specially designated centres.
German authorities have struggled with the administrative logistics of an influx of more than 1 million migrants in the past year.
However the number of migrants arriving in Germany continued to drop since the start of the year, Germany's Office for Migrants and Refugees (BAMF) said Monday, with 16,000 registering for asylum in April, down from 90,000 in January.
Those numbers were mirrored by figures out of Greece - which has served as the entry way to Europe for many migrants in recent months - which showed on Monday that the number of arrivals there was also on the decline. Figures for the last three days showed only 138 arrivals, down from an average of 900 a day in March.