Mexico's army seized nearly $15.4 million from the organization of the country's most powerful drug lord, Joaquin "Shorty" Guzman, officials said Tuesday, marking a rare financial blow to cartels. The seizure was revealed the same day U.S. border police revealed the third discovery in a week of drug-smuggling tunnel under the border with Mexico. In Mexico, the military said it found the cash was found in a vehicle on Nov. 18 in the northern border city of Tijuana and that it was linked to Guzman's operations. The haul marked the second-largest cash seizure by the military since President Felipe Calderon sent the country's armed forces out to battle drug cartels in 2006, the statement said. Some $26 million was captured in September 2008 in Culiacan, the capital of Guzman's home state of Sinaloa. Only on msnbc.com 'Grateful to be alive': Teen rescues woman from fire Mexicans cross US border to sell their plasma Chinese consumers say: Fix this fridge or sledgehammers coming Black Friday 'flash mobs,' sit-ins urged Look out kids, here comes the 'Wolf Daddy' Move to ban alleged insider trading faces pitfalls Will Gingrich's comments haunt him? About 45,000 people have died in the conflict in the last five years and the government has captured or killed dozens of top level drug smugglers.