LIMA - Peruvian left-wing candidate Pedro Castillo has stretched his lead in the Andean country's presidential election race, according to a poll released Sunday, with almost double the level of support of conservative opponent Keiko Fujimori.

Castillo, who has pledged to draft a new constitution to give the state more control over the economy, was shown with 41.5% support in the poll by the Peruvian Studies Institute (IEP) published in newspaper La República.