Metro

Workers injured during repairs following manhole blasts, fire

Two National Grid workers were injured late Monday night while repairing electrical equipment damaged by the manhole explosions and underground fire that rocked Malden a day earlier, National Grid said.

“Last night, two of our workers were working on a planned maintenance project in Malden and sustained injuries after a flash occurred at one of our above ground switches,” National Grid spokeswoman, Amie O’Hearn said Tuesday.

The workers, whose name were not released, were taken for medical treatment after receiving electrical shocks. They are both expected to make a full recovery, O’Hearn said.

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“Safety is our number one priority. It is part of National Grid’s DNA,” O’Hearn stressed.

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National Grid workers have been working to restore power to the area since the manhole explosions Sunday afternoon.

No injuries were reported from the explosions, officials said.

National Grid investigators found that an underground equipment malfunction caused a blaze that sent four manhole covers flying and left 88 customers without power, the utility said Sunday. Power was restored to all customers by Monday morning, O’Hearn said.

maddie.kilgannon@globe.com@MaddieKilgannon