ROANOKE, Va. (WDBJ7) -- Update:
The US Marshal's Office confirms the suspect driving the tractor-trailer is in custody Wednesday afternoon; no use of force reported.
According to officials, the Western District received a collateral lead from the Eastern District of Virginia in an attempt to locate the fugitive.
Wednesday morning, authorities were alerted of a suspicious vehicle and later initiated a traffic stop on the vehicle.
The name of the suspect has not been released at this time.
Police activity is causing back-ups on I-581 near the Elm Ave. exit Wednesday morning.
Viewer pictures and video show law enforcement surrounding a tractor-trailer.
Both Roanoke City Police, and State Police tell us this is a US Marshal operation.
State troopers are assisting.
VDOT reports the incident occurred at 10:56 a.m.
This is a developing story; stay with WDBJ7 for more information