Air Canada has locked out about 10,000 flight attendants after their union, CUPE, launched strike action early Saturday morning. The lockout started at 1:30 a.m. ET on August 16, less than an hour after the union walked off the job.

The airline had already issued a 72-hour lockout notice in response to CUPE’s strike notice. In the days leading up, it reduced its schedule of about 700 daily flights. The company says “some 130,000 customers will be impacted each day that the suspension continues.”

Air Canada said it “remains engaged and committed to negotiate a renewal to its collective agreement with CUPE.” The airline is warning passengers not to show up at airports unless they already have confirmed tickets on another carrier. “Air Canada is strongly advising affected customers not to g

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