AP

Detroit, Oct 17: A gunman stepped out of a car and shot four teenagers on a primary-school lawn near their Detroit high school shortly after classes let out Thursday, killing one of them, police said.

No arrests had been made by the evening in the shootings near Henry Ford High School, and a motive had not been determined, Deputy Police Chief James Tate said.

Henry Ford junior Christopher Walker, 16, was pronounced dead at a hospital, police said. Three other victims were in serious condition.

One was a 15-year-old female student with a gunshot wound and the other two were teens who no longer attend the institution, Detroit Public Schools spokesman Steve Wasko told the Detroit Free Press and The Detroit News.

Witnesses said a gunman stepped out of a car that had stopped at a corner and fired at the teens on the lawn outside the nearby Michigan Technical Academy campus for pre-kindergarten through second grade, next to the high school.

Tate said at least seven shell casings from an automatic weapon were found. He also said police had not determined whether the shootings were random or the victims targeted.