CP strike could shut down three commuter train lines starting Saturday

Montreal’s regional transit agency says it’s concerned about the possibility of a strike at Canadian Pacific Rail, which could shut down service on three commuter rail lines. 
Both the Teamsters Rail Conference, which represents conductors and locomotive engineers, and the International Brotherhood of Electrical Workers, which represents signal maintainers, have received strike mandates from their members.
The strike could begin just after midnight on Saturday.
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