A U.S. Secret Service agent accidentally shot and killed himself while escorting former first lady Jill Biden at Philadelphia International Airport on March 27, local and federal authorities said.
Philadelphia police told USA TODAY that the agent was hospitalized after suffering a self-inflicted wound.
The incident occurred around 8:40 a.m. local time near the 1 PIA Way access point and Pennsylvania Tower, city police said. Initial reports said the agent was traveling in an unmarked Chevrolet SUV when he “accidentally discharged his gun.”
The extent of the agent’s injuries was not immediately known, but police said emergency medical services were called to the scene and transported the agent to Penn Presbyterian Medical Center, where he was listed in stable condition.
There were no other injuries, officials said.
“Authorities are in custody at the scene for investigation, but there are no reports of other injuries or disruption to airport operations,” police said.
Secret Service spokesman Nate Herring told USA TODAY that the agent was on guard duty at the time.
“The detainee’s movements were not affected and he was not present at the time of the incident. No injuries to others were reported,” Herring said.
The Secret Service’s Office of Professional Responsibility is investigating the incident.
This is a developing story.
Natalie Neisa Alland is a senior reporter at USA TODAY. Contact her at nalund@usatoday.com and follow her at X @nataliealund.

