A conservative German state government ordered three suspected members of a radical Islamic group to leave the country.
Bavaria's state interior ministry said the three men - two Bosnians identified as Izudin J. and Fatmir J. and a Moroccan, Youssef J. - have been "missionaries" for the Jamaat al-Tablighi group in Germany over recent years.
The group and its supporters "have as their aim the Islamization of all of society," a ministry statement said, adding that they also have been accused of supporting terrorism.
The United States has said the organization, a Pakistan-based Islamic organization that describes its activities as missionary, is used to mask the activities and travel of terrorists and al-Qaida members.
The three men were given until Sept. 10 to leave Germany or face deportation.
"It must be clear to Islamic extremists that the Bavarian authorities will not accept crimes or actions directed against the security of Germany," Bavarian Interior Minister Guenther Beckstein said. "Anyone who wants to replace our free democratic order with an Islamic religious state has no business here."
Beckstein was named this week as conservative challenger Angela Merkel's internal security spokesman in the campaign for Germany's Sept. 18 elections.
He has cultivated a hardline image, particularly on immigration, and has been a leading advocate of deporting suspected Islamic extremists. Bavaria, the country's largest federal state located in southern Germany, has deported 16 so far this year, The AP reports.
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