A Commerce City man died Monday after falling three stories and landing on concrete at a construction site, according to the North Metro Fire Rescue District.

The victim, a construction worker at the site, had died as a result of traumatic injuries by the time fire paramedics arrived.

The apparent accident happened at 4:30 p.m. on Via Varra Road in Broomfield. The exact cause of the fall has not been determined and remains under investigation, according to NMFR Spokeswoman Wendy Forbes.