 After the November 5, 2010 arrest of Harold Mauricio Poveda, a key Mexican–Colombian link, it was suspected that FARC (the Revolutionary Armed Forces of Colombia) is behind the construction of narco-submarines and is collaborating with the Sinaloa Cartel to fund its armed activities.The largest recorded seizure took place in July 2015 when a cargo of was seized on a semi-submersible which had been tracked by aircraft and interdicted by .On March 28, 2016 the US Coast Guard seized a semisubmersible about 300 miles west of Panama, carrying about 6 tons of cocaine with a street value of about $200 million.