About 200 teachers staging an open-ended strike in Madrid, the capital of Spain, halted traffic on part of a highway.
Foreign media reported the incident, Operative Information Center-OMM reports.
The protest began at around 8:30 a.m. local time, according to reports.
Protesters blocked the road with school desks and chairs, chanting: “Public education is not for sale; public education must be defended!”
Teachers at public educational institutions began an open-ended strike on October 14. They are demanding increased funding for education, fewer pupils in classrooms and improved working conditions for teachers.
Various pickets, demonstrations and rallies have also been held previously to press for the demands to be met.