Nov. 20 (UPI) -- FBI agents arrived in Guatemala this week after the government requested U.S support to track down 16 gang members of the Barrio 18 group who escaped from the Fraijanes II prison Oct. 12. Guatemala 's Interior Minister, Marco Antonio Villeda, held a meeting with the FBI team Tuesday begin operations. The effort will be led by the Vulcano Joint Task Force , an FBI unit specialized in combating transnational criminal organizations, the digital outlet EP Investiga reported.