Several people burst into a residence in Lévis, equipped with firearms, before quickly leaving the scene on Sunday morning.
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The incident occurred shortly before 7 a.m. on rue de la Vanille, in the Saint-Jean-Chrysostome sector.
After threatening the occupants, they left the scene, explains Sergeant David Francoeur, of the Service de police de la Ville de Lévis (SPVL).
No one was injured and no shots were fired, it is claimed.
A major police deployment took place in the area to try to find the individuals and understand their intentions.
A dog handler from the Sûreté du Québec was also to comb the area on Sunday.
“The residents are still in shock this afternoon, they have to meet with our investigators to explain what they saw. We don't know yet if there was a theft," says Francoeur.
An investigation is underway, in partnership with the SQ's major crimes unit, to shed light on the incident.