An attempted electrical cable theft left 900 homes in the Alfreton area without power last night.
An unknown number of offenders cut high voltage live electricity cabling attached to a wooden pole off Birchwood Road in Alfreton at around 7.30pm, police say.
A small explosion was caused, which lead to the pole catching fire and power cut to the surrounding area.
A police spokeswoman said the offenders would have likely been injured in the incident. The force is appealing for witnesses to the incident, or to anyone who noticed a family member, friend or neighbour with recent burns on Sunday evening to contact its non-emergency number, 101.