A police officer guards packages of seized marijuana in this undated photograph provided by Mexico's Federal Police, October 22, 2015. Mexican police busted a smuggling tunnel run by the drug gang of kingpin Joaquin "El Chapo" Guzman on the US border stashed with about 10 tons of suspected marijuana, officials said. The tunnel, which ran under the border from the Mexican city of Tijuana, was some 2,625 feet long, the National Security Commission (CNS) said in a statement. Only about 650 feet of the tunnel were in the US.