JoAnn "Jodi" Crupi, a former Madoff employee was taken into custody at her home in Westfield, N.J., according to the FBI. Crupi had worked for Madoff for more than 25 years.
Annette Bongiorno was an assistant to Madoff and was arrested at her home in Boca Raton, Fla., according to the FBI. Bongiorno began working for Madoff in 1968.
*CNBC Assignment Desk Manager Ryan Ruggiero contributed to this report.