(AP) - New York City fire officials say a worker hasbeen killed in a scaffold collapse in Brooklyn.

A spokesman says four workers were on a scaffold at the fifthfloor of a Park Slope building at about 5:30 p.m. Tuesday when itcollapsed.

One worker fell to his death and firefighters rescued the othersby pulling them in through open windows. The spokesman says twoworkers refused medical attention and a third has been taken to alocal hospital.

It was not immediately known if the workers were window washersor had been making repairs to the building.

Authorities are investigating what caused the scaffold todislodge from the building.