Vehicular homicide charges have been filed against the teenage driver who police said caused a fatal crash in south Fulton County last month.

Sandtown Middle School teacher Shireen Haynes died in the March 19 wreck on Camp Creek Parkway near Campbellton Road.

The Saturn that Haynes was riding in was struck by another vehicle driven by a teenage girl, and was pushed into the path of an oncoming tractor-trailer, Fulton County police said.

The 16-year-old girl, whose name has not been released due to her age, was initially charged with failure to maintain lane and driving on a restricted license and suspended registration.

The girl’s mother, Syreeta Collins, was accused of telling her daughter to drive without a proper license and was charged with allowing an unauthorized driver to operate a vehicle.

This week, charges against the teen were upgraded to vehicular homicide in the second degree, Fulton County police Cpl. Kay Lester told the AJC.

An additional charge of reckless conduct was lodged against the girl’s mother, Lester said.