Four workers were injured Tuesday in a fall near Grand Central Terminal—the second construction accident in two days. Lawyers say they've noticed an uptick in job-site accidents in the city. NY1's Lori Chung filed this report.

Emergency crews responded Tuesday to a construction accident in Midtown that left four workers injured. Officials say they were removing a chandelier inside 331 Madison Avenue when a railing gave way.

“An open stairway, they seemed to be working around the open stairway and when they fell, the heavy marble banister came down with them," says FDNY Chief Tom Meara.

It's the second construction accident this week.  On Monday, a 22-year-old worker was killed at a site in the Meatpacking district when a facade fell on him.

 “Fall from heights or people working at elevated heights is one of the most common injuries and fatalities that workers have on the job,” says New York Committee for Occupational Safety and Health Executive Director Charlene Obernauer.

Last Wednesday, another worker was killed—when he fell six stories from a building in Brighton Beach.   Advocates with NYCOSH say much of their work involves urging companies to take safety seriously.

“There are oftentimes citations that are issued based on things like not providing a harness or not providing workers with, really, the safety and equipment that they need," says NYCOSH Executive Director Charlene Obernauer.

Other recent accidents: a woman in Greenwich Village hit and killed by a flying piece of plywood. In February, a worker was hurt in a partial building collapse on the west side. Two days earlier, a man was crushed to death working on the roof at Barclays Center. In January, a man fell down an elevator shaft to his death on the Upper West Side. 

Advocates say it's too early to say there's a trend, but attorneys we spoke with say they've noticed a spike in accidents.

 “We’re seeing a decline in the number of union workers," says attorney Gregory Hach. “As those become fewer and fewer, those workers, we're seeing a rise in accidents."

 “What we typically see are construction workers who aren't provided with proper safety protection," says attorney Michael Rose.

 Fortunately, the workers involved in this accident are expected to recover. Meantime, the company here, SL Green Realty, says they will be working with the Department of Buildings to make sure that safety conditions here are improved going forward.