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.

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

Agent David “Chris” Maland died in a shooting following a traffic stop, the FBI said. A second person killed in the incident was a German national in the country on a current visa, authorities said.

An investigation was underway on Tuesday near the United States’ border with Canada, where an agent was fatally shot “in the line of duty,” authorities said

Officials said the agent was shot on Interstate 91, which was closed for several hours near the border with Canada.

The fatal encounter occurred around 3:15 p.m. EST Monday on Interstate 91 in Coventry, about 13 miles south of the Canadian border.

FBI Albany said they are investigating "an alleged assault on a federal officer in connection with a fatal shooting involving a U.S. Border Patrol Agent."

A United States Border Patrol agent was gunned down during a traffic stop in Vermont near the Canadian border, officials have confirmed.It happened around 3:15 p.m. Monday on Interstate 91 in Coventry,

A U.S. Border Patrol agent was shot and killed in the line of duty in Coventry on Monday afternoon, authorities said.

A U.S. Border Patrol agent was shot and killed in northern Vermont Monday afternoon, the FBI said in a statement later that evening. The shooting took place on Interstate 91 in Coventry, Vt.,

David "Chris" Maland, the U.S. Border Patrol agent allegedly killed by a German national during a traffic stop near the Vermont-Canada border on Monday, was an Air Force veteran.

A spokesperson with U.S. Customs and Border Protection has confirmed to NBC5 that a Border Patrol agent and another person were killed Monday afternoon in an incident in Coventry, Vermont. The FBI said a third person was injured and is now in custody.