( CNN ) -- Mexican forces scored a potentially strong hit against the Zetas drug cartel with the capture of one of its top leaders , Ivan Velazquez Caballero , alias `` El Taliban . '' Mexican marines arrested the person `` presumed to be and who says he is '' Velazquez in the north-central state of San Luis Potosi on Wednesday , officials said . Velazquez is `` one of the principal leaders of the Zetas cartel , '' the Mexican navy said in a statement . Gulf cartel boss arrested . Additional details were to be released Thursday . Velazquez 's name appears on the list of Mexico 's 37 most wanted traffickers . Authorities were offering a reward of 30 million pesos ( $ 2.3 million ) for information leading to his arrest . The Zetas are one of Mexico 's major drug cartels , known for its violence . Recent reports indicated that Velazquez was in a power struggle with another Zetas leader , Miguel Angel Trevino Morales . If confirmed , the capture would be another success for Mexican President Felipe Calderon 's war on the drug cartels , which has left tens of thousands dead , but done little to reduce the amount of drugs transported through the country . More : Venezuela drug lord captured . CNNMexico.com contributed to this report .
The navy says its marines captured Carlos Velazquez on Wednesday . He is one of Mexico 's ten most - wanted traffickers . More details on the capture are released later on .