Philadelphia Fire Escalates to Second Alarm with Mayday Call

March 17, 2026 | Phila., PA

A fire that broke out in a three-story mixed-occupancy row dwelling at 535 High St. has prompted an upgrade to a second alarm and a request for a Mayday response assignment. Firefighters responded to the 15x35 structure, with command reporting the blaze on March 17 at approximately 7:14 a.m. The escalation was due to the fire's intensity.

Command Report fire in a 3 Story m/o/r occ Dwelling 15x35. upgrtading to 2nd alarm. Request mayday resp assignment.

The Mayday call signals potential distress among responders, though details on injuries or the cause are unavailable at this time. Investigations are ongoing.

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