Feb. 9 (UPI) -- Schools closed as teachers in San Francisco began a strike Monday after struggling to come to an agreement with the school district over pay and health care costs.
It's the first time in 50 years that the district has seen a teacher strike. It affects 50,000 students.
The United Educators of San Francisco and the San Francisco Unified School District spent the weekend working toward an agreement, which has been negotiated for almost a year. The union represents about 6,000 educators, counselors and nurses.
Another union that represents 253 administrators and principals has also launched a sympathy strike.
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