MEXICO CITY, July 13 (Xinhua) -- The United States Treasury Department is investigating 270 cases of money laundering worldwide, the U.S. embassy in Mexico City said on Thursday.

    The laundering involves around 80 companies and at least 12 people from countries such as Colombia, Jamaica and Peru. Organizations from Thailand and the Caribbean island state of St Kitts and Nevis are also alleged to have been implicated, the embassy said.

    The embassy has close ties with the U.S. Drug Enforcement Administration and its offices in San Diego, California, and El Paso, Texas, from where they have been fighting money laundering by Mexican drug traffickers.

    The embassy said that some of the companies linked include CajaAmigos Express, Operadora de Caja y Servicios, Multicaja de Tijuana, Profinsa and Strong Link de Mexico.

    The embassy named two brothers -- Oscar Arturo and Miguel Angel Arriola Marquez -- and five other individuals as being leaders among the money laundering suspects. Enditem