Authorities received notice around 8 p.m. Wednesday night of a potential bomb inside a shipping container aboard the Maersk Memphis containership at the Wando Welch Terminal in Mount Pleasant.
The terminal was evacuated while federal, state and local law enforcement agencies investigated. Only investigators were allowed within a mile of the ship, U.S. Coast Guard spokesman James Zorn said.
The unified command leading the investigation identified four containers where the threat was posed. The containers were scanned and the threat was cleared as of 3:30 a.m., Zorn said. The terminal has since resumed normal operations.
“Today the port is operating as usual with minimal impacts to our operations from last night’s incident,” port spokeswoman Erin Dhand said. “Only one shift was missed, and that work is expected to be made up today with the support of the ILA 1422 and 1771, stevedores, maritime community and SCPA operations team.”
The original source of the threat has been detained by authorities for further questioning, according to the Coast Guard.
Responding agencies included the Coast Guard, the FBI, the S.C. Department of Natural Resources, the Mount Pleasant Police Department, the Mount Pleasant Fire Department, Charleston County, the S.C. State Ports Authority, S.C. National Guard Civil Support Team Unit 43, the State Law Enforcement Division and the Coast Guard Investigative Service.