MID-CITY (CBSLA.com/AP) — Los Angeles police have called off evacuations and ended a search for a suspect who reportedly fired a gun in a residential neighborhood.

According to the Los Angeles Police Department, the search ended after more than six hours Wednesday with no suspect found in the Arlington Heights area.

Shortly after 1 a.m., a victim called 911 to report that he had been shot at in the area of Washington Boulevard and 6th Avenue.

SWAT team members escorted families including young children in pajamas out of several homes as they established a perimeter.

A preliminary investigation revealed the suspect used a high-powered rifle to fire four rounds. Shell casings were located at the scene.

At this time, it remains unclear if any weapons were recovered.

As a precaution, students and staff at nearby Arlington Heights Elementary school were relocated to Cochran Middle School. Arrangements are being made to reopen the elementary school. The L.A. Technology Center has also been placed on lockdown until further notice.

Detectives described the suspect as a Hispanic man who has a shaved head and stands 5-foot-6 tall. He was last seen wearing a black hoodie.

No injuries were reported.

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