UPDATE: Man Dies on I-66, Traffic Tangles Follow After Crash

Update 9:20 p.m. A South Carolina man died today on I-66, authorities have confirmed.

Virginia State Police issued a statement this evening saying that the driver of a 1997 BMW sedan was traveling west on I-66 and apparently lost control. Eyewitnesses said that the BMW was weaving across lanes, then struck the guardrail on the right side of the road, according to state police.

The car crossed back into westbound lanes and struck a 1999 Ford Explorer. The driver of the Explorer, who was not wearing a seat belt, then spun out and overturned several times. The driver was partially thrown from the Explorer and died at the scene, police said. 

The driver of the BMW was not injured and police did not release his name yet, but said charges are pending. Alcohol has been ruled out as a factor.

Virginia State Police said they are still in the process of notifying the driver of the Explorer's next of kin. 

All lanes were reopened  by 7:55, police said. 

Updated 7:05 p.m. Two lanes on I-66 have now reopened, according to WTOP. 

Update: 6:40 p.m. We've pieced together a picture of what's going on based on information from multiple readers. Route 50 and I-66 are a parking lot and I-66 is still closed at Fairfax County Parkway while state police investigate the incident. Traffic going east (and west, after the area shut down) near Centreville, is apparently moving smoothly.

Route 50, 123N, Stringfellow Rd., West Ox Road and virtually all of downtown Fairfax City are congested. Those traveling on Nutley St., near Lee Hwy, are also stuck in some serious congestion.

We can't be in all places at one time, so send us your traffic woes in a tweet or post on Facebook. 

Update: 5:45 p.m.

A spokesperson for the Virginia State Police said that lanes are expected to open at 6 p.m.

Original Post:

At least one person is dead following a crash that has tied up all lanes on I-66, near the Fairfax County Parkway. 

All lanes of I-66 are completely blocked and police are diverting traffic from I-66 westbound onto Route 50. All ramps from Route 50 onto I-66 are shut down. Authorities say that the delays could last for hours, and commuters are advised to find another route home. The incident occurred around 3:43 p.m. and apparently involved two cars. 

Virginia State Police are investigating the incident. Patch will update as more information becomes available.