PHILADELPHIA (CBS) —Seven people were injured following an escalator malfunction inside the Pennsylvania Convention Center on Wednesday afternoon, according to officials.

The incident happened around 1:40 p.m. on the 1100 block of Arch Street.

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Pete Peterson, spokesperson for the Pennsylvania Convention Center, released the following statement about the incident:

“One of the Pennsylvania Convention Center’s escalators experienced a mechanical malfunction today. We take the safety of any and all guests in our facility very seriously and will be conducting a full investigation to determine the cause of the unfortunate incident. We extend our heartfelt apologies to any individuals who were injured or otherwise impacted by the malfunction.
The escalator has been taken out of service pending a full inspection and investigation of potential causes. The appropriate authorities have been notified and will receive our full cooperation.”

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Officials say the down escalator malfunctioned, causing 7 people to suffer minor injuries.

The victims were transported to Hahnemann University Hospital and Jefferson Hospital.

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There is no word yet on the cause of the malfunction.