The Department of Homeland Security’s U.S. Customs and Border Protection said in a statement that the agent was killed in the line of duty, although it did not provide details.

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

A U.S. Border Patrol agent was shot and killed in Vermont on Monday while performing their duties near the Canada-U.S. border, according to U.S. federal and state authorities.