Surveillance photos captured two persons of interest wanted in connection with a shooting that left a victim injured in the 300 block of Walker Avenue in Highland Park Monday evening. | Background Photo: Craig / Captured News; Insets: Provided

A shelter-in-place advisory was lifted but two persons of interest remain wanted after a victim was shot in Highland Park Monday evening, prompting a major police response.

The Highland Park Police Department and Highland Park Fire Department responded around 7:35 p.m. Monday to the 300 block of Walker Avenue in Highland Park for a report of a person shot.

A major police response was sent to conduct an extensive search for suspects after a person was shot in the 300 block of Walker Avenue in Highland Park Monday evening. | Photo: Max Weingardt

Fire department radio traffic indicated a person had been shot and the offender or offenders were fleeing on foot toward the train station.

Police released surveillance photos of a male subject and a female subject who were identified as “persons of interest” and considered either witnesses or potential suspects.

A major police response was sent to conduct an extensive search for suspects after a person was shot in the 300 block of Walker Avenue in Highland Park Monday evening. | Photo: Max Weingardt

They were seen talking with the victim just prior to the shooting, police said. “If you see them, please call 911.”

The City of Highland Park issued an alert asking people to avoid the area due to the large police presence investigating the shooting.

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A major police response was sent to conduct an extensive search for suspects after a person was shot in the 300 block of Walker Avenue in Highland Park Monday evening. | Photo: Nick Rusin

Residents in the immediate vicinity were advised to shelter in place and avoid the area to allow the investigation to proceed, city officials said.

“Residents in the area should not open doors or windows to unexpected visitors, and should call 911 with any concerns,” the alert said.

A major police response was sent to conduct an extensive search for suspects after a person was shot in the 300 block of Walker Avenue in Highland Park Monday evening. | Photo: Craig / Captured News

The injured victim was rushed to Advocate Condell Medical Center in Libertyville, which is a Level 1 trauma center. Their condition was not released.

Police established a perimeter and were using canines and drones to assist in the search.

A major police response was sent to conduct an extensive search for suspects after a person was shot in the 300 block of Walker Avenue in Highland Park Monday evening. | Photo: Craig / Captured News

City officials say investigators are working to obtain suspect information.

“If you have any information to share, please call 911. This is a rapidly evolving situation,” the alert said.

A major police response was sent to conduct an extensive search for suspects after a person was shot in the 300 block of Walker Avenue in Highland Park Monday evening. | Photo: Nick Rusin

Numerous police departments were on the scene assisting, including the Lake County Major Crime Task Force.

The city announced just after 10:30 p.m. Monday that the shelter-in-place was lifted but police officers were continuing to remain in the area as the investigation continued.

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A major police response was sent to conduct an extensive search for suspects after a person was shot in the 300 block of Walker Avenue in Highland Park Monday evening. | Photo: Nick Rusin

Law enforcement conducted a thorough search and evidence indicates the offenders fled the area, city officials said.

Police have not released the condition of the shooting victim or said what may have led to the incident.