Credit: Paul Biasco/DNAinfo

CHICAGO — There’s a $20,000 reward for information that leads to the conviction of the people who shot an off-duty officer in Bronzeville.

Police are “making great progress” in the case, according to a news release, but are still looking for the shooter or shooters.

The officer, a 25-year-old man, was driving early Wednesday when he was shot by someone in another car in the 200 block of East 37th Street, police said. He was hit in his head and taken to University of Chicago Medical Center in critical condition.

The officer underwent emergency surgery and remained hospitalized as of Thursday.

The Chicago Police Memorial Foundation is offering a $20,000 reward for information that leads to the arrest and conviction of the gunmen, according to a Chicago Police news release.

The gunman was inside a newer Toyota Camry that was dark-colored and had tinted windows, police said. The driver went south on Michigan Avenue from 37th Street after the shooting.

Anyone with information about the shooting was asked to call Det. J. Richardson at 312-747-8380.

Surveillance photo of the shooter’s car. Twitter @BauerJournalism