Seven students of Genoa-Kingston High School were injured Thursday after an explosion occurred in a chemistry room at about 10:30 a.m.

All seven students were transferred to Kishwaukee Hospital in DeKalb.

According to hospital spokeswoman Sharon Emanuelson, four of the students were treated for second degree burns at Kishwaukee and were not expected to be admitted to the hospital. Three of the victims had more severe burns and were transferred to a burn center in Rockford.

Emanuelson would not reveal the name of the burn center, the names of the students or their status.

The aftermath of the explosion resulted in classes at the high school being dismissed for the day.

Seven other fire departments in addition to Genoa-Kingston’s responded to the scene.