The Interior Ministry said the explosive device went off in the middle of the night at a substation near the town of Khasavyurt, which is close to the internal border with war-ravaged Chechnya.
The same substation came under fire from a grenade launcher late last month in what the head of the regional power company, who is also a Daghestan government official, called part of a failed plan to mount a series of terrorist attacks on Khasavyurt.
The blast at the substation came a day after authorities said they found and defused a bomb near a gas pipeline in another part of Daghestan.
The ethnically mixed, mostly Muslim, region in southern Russia has been hit by frequent bombings and other attacks in the past year.
(AP)
The same substation came under fire from a grenade launcher late last month in what the head of the regional power company, who is also a Daghestan government official, called part of a failed plan to mount a series of terrorist attacks on Khasavyurt.
The blast at the substation came a day after authorities said they found and defused a bomb near a gas pipeline in another part of Daghestan.
The ethnically mixed, mostly Muslim, region in southern Russia has been hit by frequent bombings and other attacks in the past year.
(AP)
