GASTON COUNTY, N.C. -- Officials say one of the northbound lanes on I-85 is shut down in Gaston County following a crash involving a tractor-trailer Wednesday afternoon.

According to officials, a tractor-trailer hit a bridge on U.S. 321 near Mile Marker 17. Crews have closed the ramp from U.S. 321 south to I-85 north.

Officials did not say when the ramp and the right lane are expected to reopen.

Stick with WCNC.com for the latest on this developing story.