Suspected hoodlums attacked ad hoc staff of the Independent National Electoral Commission (INEC) on Friday night.
The ad hoc staff were camped at Tudunwada Primary School in the Gombe metropolis.
However, they were attacked in the wee hours of Saturday and the hoodlum took away no fewer than three phones, backpacks and power banks.
Three persons have been rushed to the hospital having sustained machete cuts, while others are nursing varying injuries.
An eyewitness who confirmed the attack on condition of anonymity told newsmen that the hoodlums made away with the phones of some of his colleagues who were trained to conduct the presidential and national assembly elections.
He said many of them were injured following the attack while trying to flee for safety.
This is coming after security agencies assured Nigerians of adequate security before, during and after the general elections.
