Accident at 393 and 98?

does anyone know what happened? When I came through from North on 393, the east bound lane of 98 was blocked with vehicles and four or five cops, including a state trooper. Too dark to tell exactly what happened...we have so many accidents around here...tonight the traffic was really horrible....lots of slow moving cars, even more trying to move really fast..and buses, big trucks, trailers....98 was very crowded with vehicles...more so than usual on a Tuesday night.