The shooting happened at about 3:52 a.m. in the 100-block of E. Ontario Street, police said.
A man, 37, and a woman, 36, were in a car when they were rear-ended by a silver sedan.
Four male suspects got out of the car, pulled out guns and demanded the victims' belongings, police said.
One of the suspects fired shots into the ground; police said nobody was shot.
The suspect then fled westbound.
No injuries were reported.
CPD Area Three detectives are investigating.
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