PHILADELPHIA (CBS) — Two workers have been hospitalized after a scaffolding collapsed in Old City on Thursday morning.

Crews responded to the scene near 4th and Walnut Streets around 9:30 a.m.

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Police say a 23-year-old man suffered cuts to his left arm and right leg and a 41-year-old man suffered cuts to his face and right arm when a line snapped from the scaffolding approximately 25 to 30 feet onto an adjacent roof.

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Both men were transported to Jefferson Hospital. Their conditions are not known.

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Walnut Street between the 400 and 500 block has been closed due to structural damage.