In a national televised speech, Pinera apologized on Tuesday evening for "decades" of accumulated problems and announced a new social and economic agenda following the deadly riots.
"It's true – problems have not occurred in the last few days, they've been piling up for decades," he said of the South American country of 1
The President pledged social and economic reforms to address the issue of unrest, including pension increases, affordable health insurance, lowering pharmaceutical prices and stabilizing electricity prices.
But Pinera's speech has done little to calm the problem. The protests started with a now suspended price increase for subway tickets in Santiago, but have since expanded and reveal profound anger among ordinary Chileans, stemming from the economic rise of the city Nation feeling excluded.
Many are frustrated by economic inequalities, living costs and rising debt in a country that remains one of the wealthiest and most stable in Latin America. Tensions escalated on Wednesday, when a four-year-old child was killed after a person driving an unidentified vehicle rammed into a crowd in the city of San Pedro de la Paz. Another person died in the incident.
A third man was killed on Wednesday after he was attacked by the Chilean police in Santiago, Interior Minister Rodrigo Ubilla told reporters.
The three deaths increase the number of victims of the protests to 18.
In response, the government extended for the fifth year in a row a curfew for the Santiago Metropolitan Region. Classes and schools in the city are also closed until Friday.
CNN's Clara Lopez, Helena de Moura, Jackie Castillo, Bethlehem Feleke, Flora Charner and Florencia Trucco in Atlanta, as well as Christopher Ulloa in Santiago reported.