The FBI arrested 21-year-old Washington state woman Teresa Youngblut in connection with the fatal shooting of U.S. Border Patrol Agent David Maland.

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.

COVENTRY, Vt. (TNND) — A 21-year-old Washington state woman has been arrested in connection to the fatal shooting of a U.S. Border Patrol agent in Vermont, according to the FBI. Teresa Youngblut was charged with assault on a federal law enforcement officer in Monday's killing of 44-year-old David "Chris" Maland.

A criminal complaint filed in federal court accuses Teresa Youngblut of assault as Agent David Maland's casket brought to Colonie for flight home to Minnesota.

Washington woman Teresa Youngblut faces federal charges after a deadly Vermont highway shootout killed Border Patrol Agent David Maland during a traffic stop.

Teresa Youngblut, 21, was charged in Monday's killing of Border Patrol Agent David Maland, the FBI said, noting that Youngblut and a German man who died in the firefight that also killed Maland had been under surveillance for several days leading up to the confrontation.

The FBI said Friday that it arrested a Washington state woman in the fatal shooting of a U.S. Border Patrol agent in Vermont this week and identified the German man who was killed.

Washington state woman Teresa Youngblut arrested by FBI for the fatal shooting of U.S. Border Patrol Agent David Maland in Vermont

Authorities are investigating the fatal shooting of a U.S. Border Patrol agent near Canada that also left a suspect dead and another injured. U.S.

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.

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