WINSTON-SALEM, N.C. — Winston-Salem police are asking drivers to avoid a crash that closed part of 421 Tuesday morning.
421 northbound is closed at Jonestown Road for a crash that happened under the bridge.
Drivers are being sent off the roadway at the Jonestown exit and then allowed to re-enter 421 northbound.
Police say there is heavy congestion in the area and lots of back-ups, so if you can avoid the area.
The crash involved one car with only the driver inside. Police say the driver's injuries are serious and they are being treated in a local hospital.
The cause of the crash is still under investigation. Officers hope to have the road reopened in the next few hours.
WFMY News 2 will stay up to date on this developing story.