Concerns are being raised due to the large number of street lights out of order in the Knocknacarra area.
Councillor Niall McNelis says the areas affected are Kingston Road and a section of Upper Clybaun Road.
The Labour councillor says the outages are due to a transformer being damaged during recent works, with initial reports saying it may take weeks to fix.
In the interim, Councillor McNelis is calling for temporary lighting measures to be introduced.
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