WASHINGTON - Four students were injured on Monday after a 14-year-old boy allegedly opened fire at a school cafeteria in Ohio, according to local media report.

According to the US TV network ABC News, two of the victims, both of whom are students at Madison Junior/Senior High School in Middletown, Ohio, were shot, and the other two were possibly injured by flying shrapnel. None of the injuries were life-threatening, said the report.

Speaking at a press conference, local county sheriff Richard Jones said the suspect allegedly abandoned his gun as he ran away from the crime scene, and was quickly apprehended on school grounds.

The motive was still not clear, said Jones, adding that the authorities were still investigating where the suspect got the gun.