At least four people including two GEPCO employees were killed due to electrocution in Kotli Loharan area of Sialkot, reported 24NewsHD TV.
According to officials, GEPCO workers were repairing an electricity pole when the accident occurred after a sudden restoration of the power supply.
The deceased were identified as Kaleemullah and Irfan, both employees of GEPCO, and two civilian helpers, Akram and Raheel.
Police said further investigation into the incident is underway.