Postal strike hits Edmonton, Calgary, Lethbridge and Medicine Hat

A picket line outside of Calgary's Canada Post McKnight building on Nov. 05, 2018. The union representing Canada Post workers setup picket lines in some Alberta cities as part of it's rotating strike action against the crown corporation. Global News/Tom Reynolds

The Canadian Union of Postal Workers’ (CUPW) rotating strikes against Canada Post hit Alberta Monday with Calgary, Edmonton, Lethbridge and Medicine Hat seeing picket lines set up outside the Crown corporation’s buildings.

On Monday morning, CUPW released a list of cities on its website where workers would be holding strikes.

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CUPW members launched a series of rotating strike on Oct. 22. The group’s demands centre on health and safety concerns, workload, staffing and wages.

WATCH: CUPW director weighs in on impact of postal strike so far

Click to play video: 'CUPW director weighs in on impact of postal strike so far'
CUPW director weighs in on impact of postal strike so far

A mediator, appointed by the federal labour minister, had been working with both sides in an attempt to reach an agreement, but his mandate ended on Friday.

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Gord Fischer, CUPW’s national director for the prairie region, said in an interview Saturday on Global News Morning the mediator had “worked hard” with both parties, though the two sides ultimately didn’t budge.

–With files from Global News’ Joel Senick

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