(CBS DETROIT) - Michigan State Police are investigating after a couple's vehicle was shot at Monday while they were driving on Southfield Freeway.

The incident happened at about 2:15 p.m. on Monday, Dec. 5, on southbound Southfield Freeway near Grand River Avenue. 

Police say an 18-year-old woman and her 20-year-old boyfriend were shot at, with two rounds hitting the vehicle.

The suspect was driving a black SUV.

According to Michigan State Police, troopers recovered a pistol from the victims vehicle. The pistol did not have a serial number.

Police located several shell casings on the freeway.

MSP says this was not a random incident and they are continuing to investigate.

No one was injured.