Jan 14, 2013 6:29 AM CST

Both the Greenville Police Department and the Greenville County Sheriff's Office are investigating a fatal officer-involved shooting in the back parking lot of the law enforcement center early Monday morning, according to officials.
 
Greenville County Sheriff's Office spokesperson Jonathan Smith said a Greenville police officer was approached by a man who appeared to be armed with a weapon and felt threatened, calling over a deputy who was working on paperwork in his patrol vehicle outside of the Greenville County Law Enforcement Center about 3 a.m.