New York City continued its string of construction industry fatalities on Saturday, when a 49-year-old worker fell 30 feet to his death at a Madison Avenue worksite.

The city’s Department of Buildings issued a full stop-work order for the site after the incident, which occurred shortly before noon.

News sources say the 40,000 square foot building being renovated was a tech hub, Grand Central Tech.

The department's investigation is ongoing. 

Last month, three construction workers died in a single week – in incidents at three separate worksites. Fifty-one-year-old Nelson Salinas was struck and killed by  falling debris as he performed façade repairs at an apartment building on Manhattan’s East side. In Brooklyn, 23-year-old Erik Mendoza fall from the roof of a 13-story building in Brooklyn. And in Soho, 34-year-old Gregory Echevarria was crushed by the counterweight of a crane on April 13.