By Tara John, Stefano Pozzebon, Mia Alberti, Jennifer Hansler and Avery Schmitz, CNN Venezuela, Caracas (CNN) — Protests broke out in several Venezuelan cities on Monday after authoritarian leader Nicolás Maduro was formally declared a winner by the county’s electoral authority in a presidential race marred by accusations of electoral fraud. In the capital of Caracas, security forces deployed tear gas to disperse a large crowd of protesters, while crowds of people were seen walking down a main road banging pots and pans as anger rose over Maduro’s victory on Sunday. PROVEA, a Venezuelan human rights organization, said pro-Maduro armed…