Detroit police have made an arrest in an early-morning carjacking that involved an off-duty police officer's personal car and police equipment.

About 2:40 a.m. Tuesday, an off-duty police officer walking out of a West Fort Street gas station was allegedly stopped at gunpoint by a man who demanded his keys.

The officer is not affiliated with the Detroit Police Department, according to a DPD spokesperson.

After taking the officer's keys, the suspect allegedly drove off in the officer's personal vehicle, a black four-door Dodge Ram that contained the officer's police equipment, according to DPD.

A second man in a white van followed the suspect as he drove away.

Detroit police have one of the suspects in custody and have recovered the officer's car, according to the spokesperson. The department is still investigating.

More on freep.com:

Oakland commissioner's text to 'delete' emails backfires with calls for her to resign

Michigan campsite rental company accused of deception, lies, high-pressure sales