Venezuela’s President Nicolás Maduro has vowed to defeat a “crazed minority” that wants to remove him from power.
In a challenge to opposition leader Juan Guaidó, he has called for “anti-imperialist marches” on Saturday to coincide with anti-government protests.
Mr Maduro’s comments were the first since Mr Guaidó defied him and returned to the country on Monday.
Meeting trade union leaders, Mr Guaidó told public workers to defy management orders and observe a partial strike.
As head of the opposition-led National Assembly, Mr Guaidó proclaimed himself Venezuela’s interim president in January after the legislature declared Mr Maduro’s re-election last year illegitimate.