Earlier this evening, police closed Niagara Street from Hall Avenue to Gladstone Avenue, and the 800 block of Moy due to the investigation.
An active investigation in the Walkerville area has been cleared by Windsor Police.
Earlier this evening, police closed Niagara Street from Hall Avenue to Gladstone Avenue, and the 800 block of Moy due to the investigation.
The road has since re-opened.
Police say they were investigating a possible hazardous substance, but say following the investigation it was deemed not to be hazardous.