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.

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.

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

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