The midday blast in Cizre, in the province of Sirnak, was attributed to members of the insurgent Kurdistan Workers Party, Today's Zaman reported.
The homemade noise bomb was placed in a hallway on the third floor of the school, the Hurriyet Daily News said.
The injured students were taken to a local hospital. Their conditions were not immediately released.
Easer Egg Roll brings thousands to White House
Moore to attend retreat in to avoid Kutcher's wedding