Unidentified men set fire to two electricity transformers in two villages in Sharqiya which resulted in electricity outage.
Civil defense forces went to the scene of the accident, cordoned it off and extinguished the fire.
They also combed the area and did not find any strange bodies.
The unidentified men, who were riding motorcycle without metal plates, threw Molotov cocktails on the transformers and fled away.
The general prosecution was notified to open investigation.