A man with connections to an extremist "cult" is accused of kidnapping two Hudson Valley children.

Aron Rosner of Brooklyn was arrested by the FBI and New York State Police for kidnapping and obstruction of justice in connection with the disappearance of 14-year-old Yante Teller and her 12-year old brother Chaim Teller.

The siblings were last seen getting into a vehicle in front of their Fallsburg home and the car driving away last month.

Rosner is the brother of a top official in the Jewish extremist cult, Lev Tahor, in Guatemala, the New York Post reports.

The missing siblings were two of six children who recently escaped from the Guatemala cult following an intense international venture, according to the Yeshiva World News.

Police didn't release any details about the children.