Clashes between anti-government protesters and riot police in the Peruvian capital, Lima, have left a 32-year-old man dead and more than 100 people injured, including many police officers.
The protests come less than a week after José Jerí was sworn in as the interim president following the impeachment of his predecessor in office, Dina Boluarte.
Wednesday's demonstrations were organised by mainly young Peruvians who demand that the country's political class do more to combat high levels of crime and corruption.
President Jerí stated that the protest had been infiltrated by criminals intending to incite chaos and announced an investigation into the circumstances surrounding the protester's death.
He expressed regret over the death of Eduardo Ruiz Sáenz but did not provide further details about the cause. Reports indicated that he may have been killed by a bullet wound to the chest, allegedly fired by a plainclothes police officer.
Local media reported that President Jerí promised an objective inquiry to uncover the truth behind the violence.
Since Jerí's appointment, anger against the political establishment has been mounting, with young activists demanding a "clean slate" and more decisive action against crime.
The protests reflect widespread dissatisfaction with the government's handling of corruption and the rise of gang-related extortion in cities.