Herndon police are investigating the death of a worker who fell after losing his footing while working on the roof of a building.

Lt. Jim Moore of the Herndon Police Department said authorities took the man — whose name, age or hometown was not immediately released — to the hospital after fall from a roof of a Herndon Parkway building around 1:10 p.m. Monday.

No further details, such as what the man had been doing before the fatal fall, were immediately released.

The Occupational Safety and Health Administration is also investigating the man’s death, police said.