A woman has been arrested woman over the fatal shooting of a US border patrol agent earlier this week, the FBI said. Teresa Youngblut, 21, from Washington state, was charged in Monday’s killing of border patrol agent David Maland in northern Vermont.

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.

The shooting on Monday in Vermont near the Canadian border followed the surveillance of an armed couple who dressed in black tactical-style clothing.