FRANKFORD (WPVI) -- Philadelphia police are investigating a deadly crash on Roosevelt Boulevard in Philadelphia's Frankford section.
It happened in the northbound inner lanes of the Boulevard, near Adams Avenue.
Police say that the driver of a car lost control at about 3:00 this morning, and slammed into a tree.
Both the driver and a passenger were trapped inside.
Firefighters worked to free both victims, however, one person was pronounced dead at the scene.
The other was taken to Temple University Hospital in serious condition.
The incident remains under investigation.