The deceased were identified as Francisa Knauf, 60, of Triangle, and Gisela Zuniga, 35, of Woodbridge.
Officers responded to the area of Dumfries Road and Minnieville Road at 1:21 a.m. Saturday morning.
"The investigation revealed that the driver of a 2012 Honda Civic was traveling southbound on Dumfries Road and proceeded to make a left turn on a red light at the intersection with Minnieville Road," according to police spokesman Jonathan Perok. "In doing so, the vehicle crossed paths in front of a 2003 GMC Envoy, which was traveling northbound on Dumfries Rd causing a T-bone collision."
Upon impact, the Honda Civic immediately caught fire, according to Perok. Police used fire extinguishers and evacuated the driver, a 61-year-old woman from Woodbridge, and a rear seat passenger, Knauf. The front seat passenger, Zuniga, was pulled from the car by members of the Department of Fire and Rescue.
Knauf died at the scene and Zuniga died after a helicopter transport to an area hospital, according to Perok. The driver of the Civic remains hospitalized in critical condition.
The driver and a front seat passenger of the Envoy, both from Delaware, were also flown to an area hospital where they were treated and released.
All occupants in both vehicles were wearing seat belts at the time of the collision. Currently, there is no indication of alcohol or drug use being factors in the crash, according to Perok.