An estimated 100,000 students, parents and teachers in Chile have marched through central Santiago in protest at education reforms.
For more than a year the students have complained at the profit-driven state of higher education in the country.
But what began as peaceful protest, suddenly became more confrontational.
According to reports, police arrested 15 people and one woman suffered an injury to the head after being hit by a pole.
The education system in Chile is considered one of the most expensive and unfair in the world, according to the OECD.
But while the current government has proposed raising education spending to around one billion dollars, Chile’s students continue to protest against the system they call elitist.