DOB Commissioner Ahmed Tigani on Tuesday night said crews were able to enter the Midtown building and stabilize the impacted floors as part of an emergency intervention.

Workers converting the Pfizer Building into a luxury residential tower were forced to evacuate on Tuesday after columns began to buckle.

Experts said the Pfizer building collapse likely stemmed from an engineering failure, not from the building's conversion from offices to apartments.

Following the partial floor cave-in of the old Pfizer building in Midtown on Tuesday, the developer working to convert the building into a residential complex is speaking out.

But the high-profile nature of the development itself, as the largest ongoing office-to-residential conversion in the U.S. with the addition of 11 new stories, takes the implications beyond just liability and insurance.

The developer of the former Pfizer building in Midtown said the building was never at risk of collapse and the repairs are fixable.

After the NYC Pfizer building conversion buckled, what happens next? Engineers, lawyers and insurers explain how complex structural failures are investigated.

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Buckling columns on a Midtown tower forced evacuations and street closures as city crews investigated the structural failure.