NEW : This was a Mexican operation , the The Mexican Navy says . The arrest is the latest in a series of blows against the Gulf Cartel , based in the city of Matamoros , across the border from Brownsville , Texas . DEA says it has arrested Jorge Eduardo Costilla Sanchez . Jorge Eduardo Costilla Sanchez is said to be the leader of Gulf Cartel . Multimillion-dollar rewards were offered for his capture in the United States and the United States .
NEW : This was a Mexican operation , the The Mexican Navy says . DEA says it has arrested Jorge Eduardo Costilla Sanchez . Jorge Eduardo Costilla Sanchez is said to be the leader of Gulf Cartel . Multimillion-dollar rewards were offered for his capture in the United States and the United States .