CN 120 derailed 23 cars near Pelletier, Quebec. There were no injuries and no hazardous materials are involved.
CN is detouring trains on the northern (former CFMG/NBEC) route. I'm told that CN 121 and 305 are on the way, likely to be followed by 308 and 120 later in the day.
This will not affect VIA's Ocean.
UPDATE: News article (en Francais) with pictures
UPDATE: CN 121 passed by mile 163.0 (near Dalhousie Junction) at 13:10. Thanks Nic.