PHILADELPHIA (CBS) – SEPTA suspended service on three regional rail lines on Thursday morning..

Norristown Line is suspended until further notice because of overhead wire problems.

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The Chestnut Hill West line and the Trenton were also suspended due to overhead wire problems but have since resumed service.

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It’s unclear at this time if these problems are related.

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Stay with KYW Newsradio, CBS-3, and CBSPhilly.com for updates on this developing story.