A gunfire exchange between two vehicles sent Calgary police to the downtown core early Monday.
Around 2:30 a.m., police said they received reports of gunfire between a white and black SUV.
A short while later, police closed off 4 Street SW between 4 Avenue and 5 Avenue, though it has since been reopened.
It’s unknown if any other vehicles were involved.
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Officers are now looking for witnesses who were in the area.
No victims were reported, police said.