BLAINE, Wash. (AP) — Canadian border guard Lori Bowcock remains hospitalized in stable condition after being shot Tuesday in the neck at her booth at the Peace Arch crossing near Blane, Wash.

Royal Canadian Mounted Police Cpl. Bert Paquet said Bowcock was wounded Tuesday by a man entering Canada in a van with Washington license plates. The gunman then fatally shot himself.

British Columbia's Integrated Homicide Investigation Team is treating the case as an attempted murder.

The gunman has not been identified, and the motive for the shooting is unknown.

Investigators have been interviewing witnesses and reviewing video.

Police said Bowcock had worked as a civilian dispatcher at police headquarters in London, Ontario, until last spring.