Seaboard, N.C. — Cleanup crews moved more than a dozen derailed train cars Tuesday as they repaired and reopened a stretch of railroad track and highway in Seaboard in Northampton County.

About 820 feet of rail line damaged by the derailment, which happened Monday afternoon, had to be repaired.

A 93-car CSX freight train was on its daily route between Rocky Mount and Boykins, Va., Monday afternoon when 19 cars derailed near N.C. Highway 186.

The road was closed, but has since reopened.

CSX officials said Tuesday they still did not know what caused the derailment.

The train was carrying some hazardous cargo, but none spilled, CSX spokesman Nelson High said Tuesday. About 13,000 gallons of petroleum did spill, but it was cleaned up immediately, he said.

High said the company's policy is not to publicly disclose what types of hazardous materials are on board its trains, but that it does provide that information to local emergency management.