HACKENSACK, N.J. (CBSNewYork/AP) — Seven construction workers were injured Thursday afternoon when scaffolding collapsed in Hackensack.

Police told CBS2 that a roof was being repaired around 3:30 p.m. at an apartment complex on Tracy Place when the scaffolding and six workers fell about 45 feet.

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The workers are being treated at Hackensack University Medical Center. Two of the injured are in critical condition, authorities said. 

“As soon as I get a little more information here on what happened and get a look at the site, I’m going to head over there and see how they’re doing, hopefully meet with some of them and their families,” Mayor John Labrosse Jr. told CBS2’s Christine Sloan at the scene.

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City Manager David Troast said the Sheriff’s Office and Occupational Safety and Health Administration are investigating, and several witnesses were being interviewed at City Hall.

Fire officials are on the scene trying to figure out exactly what happened, WCBS 880’s Peter Haskell reported.

The names of the victims have not been released.

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