HAVERHILL — The Essex district attorney's office has identified the Haverhill man who died on Tuesday at a construction site at 98 Essex St. as Carlos Ortiz, 41.

Ortiz was working on the roof of a nine-story building when he fell through an opening in the roof, according to Carrie Kimball Monahan, spokeswoman for District Attorney Jonathan Blodgett.

She said the opening appeared to be an elevator shaft.

Ortiz was working for Progressive Roofing of Haverhill.

Kimball Monahan said OSHA is investigating and the office of the chief medical examiner will perform an autopsy to determine the cause and manner of death.

The multistory building (formerly referred to as the Chen Building), is where 62 new units of affordable housing are under development by the Affordable Housing and Services Collaborate, a division of Peabody Properties.

The first floor of 98 Essex St. will be dedicated to commercial space. Project completion is targeted for early summer of 2019, city officials said.

Formerly the home of Shoe and Leather Associates, the 98 Essex building is located within both the L.H. Hamel Leather Company Historic District and the city’s Downtown Smart Growth Overlay District.

Revitalizing the building has long been a priority for city officials in the wake of similar redevelopment initiatives in other vacant factory buildings nearby.