The anger in the Andean south looks likely to harden, protest leaders told Reuters, a major risk to firms in the world's no.
"This is an endless battle," said Edgar Chura, leader of the Puno Defense Front protest group before the Monday clashes, a view shared by other protest leaders who spoke with Reuters.
Protest leaders, meanwhile, say that a government proposal to bring elections forward to April 2024 is not enough.
Jose Luis Chapa, a protest leader and workers union official in Arequipa, said new elections must be held this year if the government wanted dialogue.
"The agreement is not to talk with anyone from government, least of all Dina Boluarte," the mining region protest leader said, adding protests would be "staggered" around the south.