Rodriguez spoke during a visit to Russia

Rodriguez spoke during a visit to Russia, which backs Maduro and has accused the United States of plotting his downfall.

Guaido was in Ecuador as part of a tour of Latin American countries designed to increase pressure on Maduro to resign. Maduro says Guaido is part of a U.S.-backed plot against him and that a failed attempt by the opposition to bring aid into Venezuela from Brazil and Colombia last weekend was a political stunt.

The United States and about 50 other countries recognize Guaido as Venezuela's president, arguing that Maduro's re-election last year was a sham. EU foreign policy chief Federica Mogherini has warned against any action by the Venezuelan government against him.