Employees at an IKEA warehouse in Brossard are under surveillance after some of them came into contact with an unidentified white powder.
Police say the mysterious substance was in a dumpster behind the distribution centre on Place de la Couronne.
A security perimeter has been set up until the investigation is complete, but police say there is no danger to the public and say the workers aren't showing any symptoms and are all fine.
The powder will be tested to find out exactly what it is.
Anyone with information is asked to contact police at 450-463-7011