By CBS3 Staff

PHILADELPHIA (CBS) — Police are looking for this woman in connection with a case of ethnic intimidation against a 15-year-old girl of Asian descent on SEPTA’s Broad Street Line. The incident occurred around 6:50 a.m. Thursday.

Investigators say she brandished a knife while making derogatory comments toward the teenager. The girl was not injured.

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SEPTA says this happened during the victim’s ride from Snyder Avenue to North Philadelphia station.

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Call police if you recognize the suspect.

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The incident occurred on the same day SEPTA announced it would increase security on the Market Frankford and Broad Street Lines.