Caracas on Saturday slammed US President Donald Trump's warning that Venezuelan airspace should be considered closed, calling it a "colonialist threat."

"Venezuela denounces and condemns the colonialist threat that seeks to affect the sovereignty of its airspace, constituting yet another extravagant, illegal and unjustified aggression against the Venezuelan people," the Foreign Ministry said.

Trump administration is piling pressure on Venezuela, with a military deployment in the Caribbean that includes largest aircraft carrier.