ATLANTA (February 21, 2013)--A federal grand jury has indicted four people in connection with a salmonella outbreak in 2009 linked to a Georgia peanut processing plant.

The indictment unsealed Wednesday in federal court in Georgia names four employees of Virginia-based Peanut Corp. of America and charges conspiracy, wire fraud, obstruction of justice and others offenses related to contaminated or misbranded food.

The company's filthy processing plants were blamed for the outbreak that killed nine people and sickened hundreds.

The company later went bankrupt.

The indictment names company owner Stewart Parnell, vice president Michael Parnell, Georgia plant manager Samuel Lightsey and Georgia plant quality assurance manager Mary Wilkerson.