Published: Oct 12, 2010 5:53 PM EDT
Updated: Oct 12, 2010 2:53 PM EDT

COLUMBIA, S.C. (AP) - A Florida man has been electrocuted while setting up setting up a ride at the South Carolina State Fair in Columbia.

Multiple media outlets reported 43-year-old Roger Thompson of Brooksville, Fla., was performing electronics work on The Rainbow ride when he was electrocuted about 3:30 p.m. Monday.

Thompson was taken to Palmetto Health Richland hospital where he was pronounced dead.

Thompson had been with North American Midway Entertainment for more than 20 years.

State Fair manager Gary Goodman says it's unclear what happened.

Columbia and Richland County officials and the Occupational Safety and Health Administration are investigating.

The fair opens Wednesday.

A North American Midway employee was killed in Columbia in 2008 when he was hit by a ride.