PITTSBURGH (KDKA) – Several Pittsburgh neighborhoods were without power after a transformer fire.

On Twitter, Allegheny County says Highland Park, Morningside, Garfield, East Liberty, Stanton Heights, Lawrenceville and Bloomfield were all without power. The outage affected about 30 blocks.

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Duquesne Light says it was dealing with 20 active power outages impacting more than 4,000 customers.

The company is preparing for possible influxes amid the extreme heat by increasing staffing and adding extra shifts.

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Customers experiencing an outage should report it by calling 412-393-7100 or going to Duquesne Light’s website.