Envoys for Venezuela's self-declared caretaker leader, Juan Guaido, met Vatican officials and lobbied the Italian government for support on Monday in their quest to keep international pressure on socialist President Nicolas Maduro.

The Vatican, which has offered to mediate, called for respect for rights and avoidance of bloodshed after Guaido's bid to end two decades of increasingly authoritarian leftist rule in the volatile OPEC member nation of 30 million people.

Members of the Vatican Secretariat of State met a delegation including Francisco Sucre, president of the foreign affairs commission of Venezuela's National Assembly, and Antonio Ledezma, former mayor of Caracas.