Officials say more than 400 people were arrested in Newport Beach over Fourth of July unrest, a roughly 570% increase from last year and many arrestees were minors or out-of-state visitors from Arizona, Nevada and Southern California.About 350 Newport Beach officers and personnel from 17 other law enforcement agencies responded; mounted units and mutual aid units helped disperse crowds after an unlawful assembly was declared.The Newport Beach Fire Department logged 102 emergencies and transported 44 people to hospitals; looting at a Pavilions supermarket and damage to storefronts were reported, and one officer suffered a non-life-threatening injury from a firework.Mayor
Lauren Kleiman blamed social media trends, Councilman
Joe Stapleton urged wider monitoring of private messaging on
Signal,
WhatsApp and
Discord to find organizers, and officials pledged prosecutions and a review of enforcement tactics.