Around 1 a.m., officers told ABC11 they were investigating a nearby homicide, involving the fatal shooting of 23-year-old Naisha McMillian, when they heard gunshots.
Officials determined the shots came from Dorothy Drive.
Upon arrival, they found an unidentified 18-year-old man has been hit.
He was taken to a nearby hospital for treatment; his injuries are said to be serious.
Police did not release any information about a possible suspect or if the shootings were related.