A collision has closed part of Highway 61 in both directions south of the Harbour Expressway and north of the Arthur Street intersection.

Multiple calls into our newsroom say emergency services began arriving in the area just after 8:00 a.m., with the closure coming into effect just after 8:30 a.m.

Ontario 511 states the incident is affecting two lanes of the highway.

This is a developing story and we will have more details as they become available.