Two women are dead after a single-car crash early Thursday morning at the intersection of University Boulevard and Piney Branch Road, Montgomery County police said.

The crash happened shortly after 3 a.m., when the car veered off the road and into a yard. Police said they are unsure of the cause of the incident and are continuing to investigate at the scene.

A third woman was also injured, but her condition is unknown.

As of 6 a.m., westbound lanes of University Boulevard are open again. Eastbound lanes remain closed as police investigate the accident.

Police said they anticipate the roadway will not be open to traffic for several hours.