U.S. border agents find smuggling tunnel in San Diego

Border Patrol Agent Eduardo Olmos said Saturday that agents detained about 30 people including Mexican and Chinese nationals.When agents approached a group of people at the site early Saturday morning, some started running and others went back into the tunnel, leading to its discovery, Olmos said.The tunnel began in a building in Tijuana, more than 300 feet (90 meters) south of the U.S.- Mexico border and ran past a fence at the Otay Mesa Port of Entry, KNSD-TV reported.