CHICAGO (CBS) — Chicago police were conducting a death investigation after the bodies of three young men were found inside a car left in an alley in the Auburn Gresham neighborhood Monday morning.

Police said the bodies of three men in their 20s were found around 7:35 a.m. in an illegally parked vehicle in an alley near 86th and Throop streets.

Fire Department officials said all three males were pronounced dead at the scene.

It was not immediately clear how the three men died.

Police said one body was in the passenger’s seat, one was in the back seat, and the third was in the trunk.

Investigators believe the car was abandoned in the alley Sunday night.

Andrea Grant said the car was blocking the driveway of one of her neighbors.

“She tried calling police; three times – twice last night, and again this morning – because she needed to go to work. The car was blocking her driveway. So I don’t know how she got to work this morning, but what I’m hearing is there are bodies in that car, and she had no clue about that part,” she said.

The car is registered to someone who lives in Blue Island.

Police have not released the names of the victims, but grieving relatives were at the scene all morning. They declined to speak to reporters.

Area South detectives were investigating.

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