Cars were set on fire and residents were carjacked by alleged cartel members in the city of Culiacan in Sinaloa province on Wednesday night and into Thursday.Authorities have not said what sparked the violence, but such actions sometimes occur following the arrest of a cartel member.“We ask the citizens of Culiacan not to leave home due to the blockades that have occurred in different parts of the city,” Culiacan Mayor Juan de Dios Gamez wrote on Twitter.In retaliation then, gunmen started shooting high-powered weapons throughout the city, and Ovidio Guzman was released in an embarrassing setback for the administration of Mexican President Andres Manuel Lopez Obrador.“The safety of Culiacan’s citizens is the most important.”Another alleged drug kingpin, named Ernesto Alfredo Pinon de la Cruz and known as “El Neto”, was killed by authorities in the border city of Ciudad Juarez Thursday morning four days after fleeing prison during a violent mass breakout."