A section of Interstate 91 in Vermont was closed Monday after Vermont State Police said a U.S. border patrol agent was shot.

A Customs and Border Protection source has identified the Border Patrol agent shot and killed during a traffic stop Monday as David Maland, 44.

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.

A German national suspect on a legal visa allegedly killed a United States Border Agent during a traffic stop in Vermont near the Northern border, Fox News Digital has confirmed.

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

A U.S. Border Patrol agent was fatally shot during a traffic stop near the Canadian border on Monday, according to officials.

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.

The agent's death Monday afternoon was confirmed by the FBI and Benjamine Huffman, acting secretary of the Department of Homeland Security in Washington. The injured suspect was taken into custody after the violence on Interstate 91 in Coventry, about 20 miles (32 km) from the Canadian border, the FBI said in a statement.

Sources tell WCAX News that a third person may have been involved in the shootout that killed a Border Patrol agent during a traffic stop in Vermont.

Border Agent shot dead during traffic stop in Vermont was an Air Force veteran who worked at Pentagon during 9/11 - Agent David Maland, 44, was a ‘devoted agent who served with honor and bravery,’ his

Members of the Vermont Senate took a moment to remember David "Chris" Maland, 44, a U.S. Border Patrol agent who was shot and killed in the line of duty near the U.S.-Canada border Monday afternoon.