
Brazil's government on Tuesday accused the United States of attempting to interfere in the October 4 presidential election, responding to the revocation of the visa of its ambassador in Washington, Maria Luiza Ribeiro Viotti.

The United States has revoked the visa of Brazil's ambassador in Washington, Maria Luiza Ribeiro Viotti, in response to the Brazilian government's delay in granting diplomatic approval to the US ambassador designated for Brasília and to the denial of visas to several American diplomats, senior State Department officials said on Tuesday.

The crisis triggered by the removal of Paraguayan president Fernando Lugo has spilt over the borders of the country and has turned into a regional controversy that threatens to become a huge headache for Brazilian president Dilma Rousseff according to the weekly magazine Istoé, one of the two with largest circulation in Brazil.