(Reuters) – A teenager has died and two have been hospitalized in critical condition after shots were fired outside a high school in Iowa on Monday afternoon, according to Des Moines police. Suspects in the shooting, which happened on the property of East High School, have been arrested, though charges have not been filed, according to a press release. Police suspect the shots were fired from a passing vehicle. Authorities are investigating the incident. (Reporting by Tyler Clifford; Editing by Chris Reese and Jane Wardell)