Several people were injured Monday, three of them seriously, in a gas blast at a middle school in the Druze village of Beit Jann, in northern Israel .
Police, Fire and Rescue and Magen David Adom emergency services were dispatched to the scene immediately.
According to initial details, the blast occurred when three technicians were attempting to repair the school's heating system.
They suffered severe burns over large parts of their bodies, while several other people reportedly suffered mild injuries.
The three were airlifted to the Rambam Medical Center in Haifa.
The Police are investigation the circumstances of the explosion, as well as whether the three were licensed technicians.