In the capital Lima, police officers used tear gas to repel demonstrators throwing glass bottles and stones, as fires burned in the streets, local TV footage showed.The unrest followed a day of turmoil in Thursday, when one of Lima's most historic buildings burned to the ground, as President Dina Boluarte vowed to get tougher on "vandals."Protests have rocked Peru since President Pedro Castillo was ousted in December after he attempted to dissolve the legislature to prevent an impeachment vote.Airports in Arequipa, Cusco and the southern city of Juliaca were also attacked by demonstrators, delivering a fresh blow to Peru's tourism industry."All the rigor of the law will fall on those people who have acted with vandalism," Boluarte said on Thursday."