At least four students -- three boys and a girl -- were injured Monday in shootings at a high school in Chardon in northeastern Ohio, authorities said.
Police and sheriff's officials said Chardon High School was on lockdown.
One parent outside the school said the shooting occurred in the cafeteria, based on information her daughter texted to her, WTAM-AM, Cleveland, reported.
Several reports indicated one suspect was arrested and police were searching for at least one other person, The (Cleveland) Plain Dealer reported.
An elementary school across the street from the high school was being evacuated, officials said. Streets near the school were blocked as police searched for the gunman, WTAM said.
"Everybody knows everybody; everybody cares for everybody," Darlene Judd, who has two sons attending Chardon High school, told the Plain Dealer. "Even though it's not your kid down, someone else's is."