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BERGHOLZ, Ohio -- CNN is reportingthe FBI has confirmed it has launched a federal investigation following several attacks involving different Amish sects.

The Bergholz clan is a renegade Amish sect led by Sam Mullet.

Several members of the Amish community tell Channel3 News that Mullet has terrorized Amish families with threats and violence.

Three of Mullet's sons along with two other men have been arrested for kidnapping and burglary.

They're accused of attacking an Amish couple and cutting off the man's beard.

Local sheriffs tell Channel 3News they have investigated similar attacks butthe Amish have been afraid to come forward with more information.