A shooting involving a U.S. Border Patrol agent has closed Interstate 91 in Coventry, Vermont, near the border with Canada, state police said.

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.

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

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.

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

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.

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.

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.

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.

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.

Investigators are being tight-lipped about the shooting death of a Border Patrol Agent on Interstate 91 here Monday afternoon. The first word of the incident, which left one other person dead and a third wounded,