RALEIGH (WTVD) -- Crews have removed a reminder of Monday's deadly scaffolding collapse in downtown Raleigh.
Thursday, crews removed the remaining pieces of metal still attached to the Charter Square high rise.
Three workers died and a fourth was injured when they plunged at least five stories to the ground.
Investigators haven't yet said exactly what caused the collapse.
It could take months before the investigation is complete.
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Scaffolding removed from fatal construction site