GETTY Angela Merkel will be presented with a report on the magnitude of the situation

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Officials conclude the missing are either working on the black market or involved in the criminal underworld, as no registration means no benefits. The shocking state of affairs has left officials deeply worried and the concerns are to be discussed at a cabinet meeting with Chancellor Angela Merkel tomorrow.

Many migrants do not register because of a fear that they may be sent back Interior ministry spokesman

An interior ministry spokesman said: ”Many migrants do not register because of a fear that they may be sent back.” The Federal Criminal Police office (BKA) will present a report entitled "overview on the situation" to Merkel and her lieutenants about the huge numbers of asylum seekers who have vanished off the radar. The BKA, which collated the numbers, will report also that crime by immigrants is mostly committed by refugees from Balkan countries - Syrians, Iraqis, and Afghans "barely feature in the crime statistics," according to a spokesman.

GETTY According to the report, crime by immigrants is mostly committed by refugees from Balkan countries

GETTY The BKA concluded it could find no evidence of organised crime being behind the Cologne sex attacks

Cologne: Sex Attacks and Robberies Tue, January 12, 2016 Thirty-one suspects, including 18 asylum seekers, are under investigation over offences including sexual assault and theft in Cologne on New Year's Eve. Far right protestors in Lepzig have rallied against refugees and German chancellor Angela Merkel. Play slideshow Reuters•Getty 1 of 22 Protestors in Lepzig rally after over 100 women were sexually assualted on New Year's Eve

The BKA has also completed an overview of the events in Cologne on New Year's Eve when bands of immigrant men, mostly asylum seekers from North Africa, sexually molested and robbed hundreds of women in and around the city's main train station. This single episode served more than any other event to polarise society, rip the welcome mat from under the refugees and galvanise right-wing parties to pose a real threat to Merkel at the general election scheduled for next year. The BKA says that it could find no evidence of organised crime being behind the Cologne events, putting them down to "cultural" differences fuelled by alcohol.