Vermont officials are mourning the loss of a U.S. Border Patrol agent killed in the line of duty near the Canadian border on Monday.

COVENTRY, Vt. (TNND) — A U.S. Border Patrol agent shot and killed during a traffic stop in northern Vermont Monday was a veteran of the U.S. Air Force who worked security at the Pentagon during the Sept. 11 attacks, according to his family and officials.

One suspect is dead and another is in custody after a U.S. Border Patrol agent was fatally shot in the line of duty in northern Vermont on Monday afternoon, federal authorities confirmed.

The Vermont Border Patrol agent murdered when he stopped a migrant near the northern border has been identified as David C. Maland, The Post has learned. An agency veteran of nearly a decade,

The Vermont State Police are assisting federal authorities after a shooting involving a Border Patrol agent. They said it happened around 3:15 p.m. Monday on Interstate 91. The FBI is leading the investigation.

Governor Phil Scott identified David Maland as the fallen officer, extending his “heartfelt condolences to Agent Maland’s family, friends, and colleagues."

A US Border Patrol agent was killed Monday in northern Vermont south of the Canadian border, authorities said.

The FBI is investigating a Border Patrol agent-involved shooting, according to a statement from the Vermont State Police.

The FBI says Border Patrol Agent David "Chris" Maland was fatally shot during a traffic stop on Interstate 91 in the North Country of Vermont.

Agent David Maland, 44, was killed Monday afternoon following a traffic stop, a U.S. Customs and Border Protection spokesperson said in a statement. A German national in the country on what the FBI called a current visa was killed and an injured suspect was taken into custody and is being treated at a local hospital.

Vermont State Police The FBI Albany Field Office continues to investigate an alleged assault on a federal officer in connection with the fatal shooting involving a U.S. Border Patrol Agent Monday afternoon on Interstate 91 in Coventry, Vermont.