SEPTA riders are dealing with delays after all of the Regional Rail lines were suspended on Thursday afternoon, according to the transit agency.

Fire department activity in Center City is causing the stoppage, SEPTA explained.

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Airport,Chestnut Hill East,Chestnut Hill West,Cynwyd,Fox Chase,Doylestown,Media,Norristown,Thorndale,Trenton,Warminster,Newark,West Trenton: Trains are stopped in both directions in the Center City tunnel due to fire department activity. Expect delays of up to 35 minutes 1/2 — SEPTA (@SEPTA) September 18, 2025

A spokesperson with SEPTA told NBC10 that the trains were stopped as a precaution because there was a burning type of smell in the tunnel.

As of 6 p.m., delays of up to 35

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