San Bernardino County Police are searching for a gunman after five people were wounded in a shooting at a Rialto, Calif., apartment complex that they say may be gang related.

Officers responded after receiving numerous reports of gunshots being fired in the area of the apartment complex, MyFOXla.com reported.

When they arrived on the scene, police found three victims with gunshot wounds who they transported to a local hospital.

Two others were taken to the hospital by private parties, MyFOXla.com reported.

Lt. Randy De Anda said five men, ranging in age from 18 to 23, were treated for gunshot wounds at a hospital and released. He said the most seriously wounded man was shot in the cheek.

Two handguns were found but there have been no arrests. The motive for the attack is under investigation.

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The Associated Press contributed to this report.