The Carolina Forest post office and all of Conway Medical Center were open as normal Friday after a 46-year-old man reported he received a threatening letter with a white powder inside and drove himself to the hospital, authorities said.
An investigation into the incident continued Friday and anyone with information about it can call the Horry County Police Department at 842-915-5350 of your local FBI office.
After testing the powder was deemed be non-toxic, non-explosive, and not dangerous, Denis said. The incident took about eight hours and the post office and hospital resumed their normal operations after 10 p.m. Thursday.
No one was hurt during this incident.