The Waukegan Fire Department responds to the 2100 block of Williamsburg Drive in Waukegan for a working fire at an apartment Thursday evening. | Photo: Efrain Andrade

Firefighters responded to two separate fires in the span of two days at apartment buildings on the same block in Waukegan this week, authorities said.

The Waukegan Fire Department responded around 4 p.m. Tuesday to the 2100 block of Williamsburg Drive in Waukegan for a report of a structure fire.

Waukegan Fire Marshal Todd Zupec said fire crews arrived to find flames showing from the front of the apartment building.

Firefighters entered the building and found smoke conditions inside.

The exterior fire was extinguished and crews worked to make sure the fire did not extend further into the structure.

The occupants were alerted to the fire by smoke alarms and no injuries were reported.

Damage was contained to a second-floor stairwell and exterior wall.

The cause of the fire was deemed accidental from roofing repairs that were done earlier in the day.

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The Waukegan Fire Department responded again to the same block but at a different apartment building around 8:30 p.m. Thursday for a report of a structure fire.

A 911 caller reported smoke coming from the building. Firefighters arrived to find smoke showing from one unit of the four-unit row house.

Firefighters entered and extinguished a small fire in the living room area. No occupants were inside at the time.

None of the apartment units are occupied at this time. The damage was considered minimal to the interior.

No injuries were reported and the cause of the fire remains under investigation.