Three days after the North Carolina Department of Transportation closed westbound Interstate 40 west of Asheville because of a rock slide in Tennessee, another rock slide occurred along the closed highway.

The DOT said Friday that a rock slide occurred near milepost 7, just east of the state line in Haywood County.

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Westbound lanes remain closed while crews in Tennessee clear the debris from the roadway and stabilize other rocks in the area. Eastbound lanes of I-40 aren't affected by either slide.

DOT engineers were assessing the extent of the North Carolina slide, and the agency had no timetable for clearing the debris and any stabilization effort.

A detour for westbound traffic remains in place.