The FBI is investigating the death of a National Park Service worker who law enforcement found with “severe injuries” last week, according to the National Park Service. The National Park Service said in a statement to NBC News on Friday that law enforcement authorities found a worker —  a 34-year-old woman from Fresno, California — injured at an employee housing unit in Yosemite Valley on March 20.  The federal agency did not describe her injuries or specify if they appeared to be linked to a crime. However, it said it would be working with the sheriff’s office and the FBI to investigate the worker’s death. The Fresno County Sheriff’s Office and the FBI confirmed their involvement in the investigation in separate emails. None of the officials identified the woman, but the NPS said she was an employee of Yosemite Hospitality. Law enforcement was called to housing unit to respond to reports of a medical emergency when they found the injured worker, according to the sheriff’s office. The worker was transported to Community Regional Medical Center in Fresno, California, where she died the next day, according to a spokesperson for the sheriff’s office, Tony Botti. This story first appeared on NBCNews.com. More from NBC News: Trump administration investigates Maine for claims of withholding gender transitions from parents Wife of Hawaii doctor says she screamed to hikers for help amid vicious rock-beating Mahmoud Khalil’s lawyers back in court as judge weighs whether to move case to Louisiana ...read more read less