A woman "in a state of dementia" attacked a police officer with a knife on Monday in Gironde, AFP learned from a police source.

Another official fired "retaliatory fire" and killed the assailant. 

A woman "in a state of dementia" was killed Monday at her home in Pessac, near Bordeaux, by a police officer who responded after she stabbed one of her colleagues, we learned from police sources .

"A retaliatory fire in self-defense"

The woman, holed up in a room in her home, stabbed a police officer in the leg, and her colleague then carried out "a retaliatory fire in self-defense", according to one of these police sources.