(WHTM) — Pennsylvania State Police are now investigating Tuesday’s deadly crash on 283 westbound as a homicide by vehicle.

The multi-vehicle crash involved two tractor-trailers and a passenger vehicle. The crash closed all lanes of westbound 283 in a portion of Dauphin County for about four hours on Nov. 7 just after 11 a.m.

According to state police, one of the tractor-trailers rear-ended an SUV, and that car became engulfed in flames.

Police said the driver of SUV, a woman, died at the scene.

According to 511pa, the incident was located between the Toll House Road exit and the North Union Street exit in Londonderry Township.

The closure caused traffic to be directed off 283 at Toll House and back on at Vine St. The roadway has since reopened, according to PennDOT.

There was also a traffic disruption on the eastbound side of 283 in the area of the Toll House Road Exit, caused by rubbernecking, according to 511pa.

Police have not said why they are investigating this as a possible homicide case.

Anyone who may have witnessed the crash, or who may have dash camera video, is being asked to contact Pennsylvania State Police in Harrisburg.