2019's year of protests
A world map showing the main types of protests in 2019.
The 18-year-old student had become one of scores of people hit in the eyes, and in some cases blinded, by police rubber bullets in Chile's recent wave of anti-government protests.
The intervention came after a study by the Universidad de Chile, commissioned by Santiago’s Salvador Eye Hospital, reported that only 20% of the projectiles were made of rubber while the remainder comprised silica, barium sulphate and lead.
Furious Chileans have been protesting social and economic inequality, and against an entrenched political elite that comes from a small number of the wealthiest families in the country, among other issues.
Tens of thousands of people gathered in Plaza de Italia, the epicenter of the unrest over economic inequality and other woes, and tried to march on the presidential palace in downtown Santiago.
Spain will host the COP25 climate summit in December, the UN said on Friday, after Chile abandoned plans to hold it due to deadly anti-government protests.
Pinera replaced eight ministers - a third of his cabinet - including the highly unpopular Interior Minister Andres Chadwick, replacing him with Gonzalo Blumel.
The past weeks have seen a wave of often unprecedented protest movements erupt in countries around the world.
Chile President Sebastian Pinera declared a state of emergency in the country as it faces its worst outbreak of social unrest in decades.