"Safety is our top priority and the cause of this incident is being investigated. We apologise to customers for the inconvenience caused by the power cut and our staff restored all supplies as quickly and safely as possible."
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Mr Dobran had been induced into a coma for several weeks following the August attack, before being moved to a nursing home.
The Cranberries singer Dolores O'Riordan has died in London at the age of 46, her publicist has confirmed.
The body of the girl, who has only been named as Baby M by officers, was discovered at the edge of Manor Park in Aldershot.