Two people are in a critical condition after a man opened fire near a supermarket in a town west of Paris.
Elite police officers have surrounded the apartment where the suspect has taken refuge in the town of Port-Marly.
The man, believed to be in his 60s or 70s, reportedly opened fire at a 57-year-old cashier with a shotgun and then targeted a 73-year-old man before fleeing the scene.
He is known to police for violent behaviour, according to BMF TV.
A police spokesman said: "[The shooter] went home and the RAID [elite police unit] is readying for negotiations with him."
The shooter is believed to have been a regular customer at the supermarket, The Local reports, and the shooting has been described as a "personal dispute".
