The U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives sent an alert to federally licensed firearms dealers a day after the shooting seeking information related to any gun purchases by Michelle Jacqueline Zajko.

Days after a highway shootout in Vermont, authorities have identified the two individuals at the center of the fatal traffic stop near the Canadian border.

A woman has been arrested in connection with the fatal shooting of US Border Patrol agent earlier this week on a highway in Vermont close to the US-Canadian border, the FBI office in Albany said Friday.

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.

The FBI says the woman and a German man who died in the firefight had been under surveillance for several days.

Prosecutors say a Washington state woman charged in connection with the fatal shooting of a U.S. border patrol agent had been in frequent contact with someone whom authorities have linked to homicides in Pennsylvania.

A woman charged in the fatal shooting of a U.S. Border Patrol agent in Vermont is scheduled to appear in federal court.

Law enforcement agencies in several states are reportedly searching for a woman believed to have supplied guns used in the fatal shooting of a Border Patrol agent last week.