Updated at 8:35 a.m.
The roadway is now clear, say Greater Sudbury Police. No injuries were reported in the incident.
Original story:
There's been a three-vehicle collision on MR 55 under the bridge near the Copper Cliff turnoff, say Greater Sudbury Police.
Police, fire and EMS are en route to the collision, police reported in a tweet at 8:01 a.m. Wednesday.
Motorists may experience delays in area.
No further information is currently available. This story will be updated.