The 22-year-old man was working just before 5:30 a.m. in the 6600-block of South Western Avenue when two unknown male suspects entered the gas station and demanded money from the register, according to CPD.
A struggle ensued, and the gas station employee was shot in the leg.
He was taken to University of Chicago Hospital in serious condition, but remained stable, police said.
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The suspects took an unknown amount of money before running north.
No one was in custody later Wednesday morning.
Area One detectives are investigating.