Colombian authorities reported that $2.8 million in cash was confiscated from a Mexican citizen, thought to be connected to the Sinaloa Cartel, as he arrived at El Dorado airport in Bogota.
Mexican authorities tipped off their counterparts in Bogota that the individual was acting suspiciously as he boarded a flight bound for Colombia's capital.
Colombian airport officials said that the detainee was suspected of being in charge of delivering the first of several payments for a shipment of cocaine sent by Colombian drug traffickers to the Sinaloa Cartel.
Connections between the Sinaloa Cartel and Colombian trafficking organizations have long been reported. In April 2011 an important intermediary between the Mexican group and Colombian drug gangs, including the Rastrojos, was arrested in Colombia.