The public sector workers strike in Durham Region will continue into the week.
Early Sunday morning, CUPE Local 1764 announced that a majority of its members rejected a "revised final offer" made by the region.
"We now hope that the Region will acknowledge our members demands and come back to the bargaining table with the concessions removed," the union says in a post on its website.
Workers walked off the job Thursday morning after negotiations with the region failed.
The strike involves paramedics, court staff, and child caregivers. Six daycares have been closed because of the action.
Union representatives say the biggest sticking point is paramedics' sick days and benefits.
"You, our members have made a bold statement! It’s now time for the Region to come back to the table and negotiate a fair contract for ALL of their employees," the union says on its website.
A BBQ and rally will be held on Wednesday at noon in Whitby.
For a full list of closures, click here.