Jose Joaquin Trejos, who as Costa Rica's president pushed through reforms that prohibited presidential re-election, has died. He was 93.

Trejos, who governed from 1966 to 1970, had no political experience before coming to power, but voters responded to his "clean hands" campaign promising to end corruption.

One of his biggest legacies was the ban on re-electing a president, a step many Latin American countries have taken to prevent strongman rule.

Costa Rica still bans a president from seeking immediate re-election. But a court ruling in 2003 allowed former presidents to run again after sitting out at least one 4-year term.

Family members said Thursday that Trejos died of natural causes Wednesday night.