Ahead of an election set next month to replace late President Hugo Chávez, Venezuela has cut its last remaining line of communication with the U.S. government.

In protest over accusations of ill-intended interference in their internal affairs, Venezuela scrapped diplomatic contact with the U.S. through the Organization of American States.

Venezuelan Foreign Minister Elias Jaua said in a news conference Wednesday that U.S. Assistant Secretary of State for Western Hemisphere Affairs Roberta Jacobson had violated Venezuela's sovereignty, despite reaching out to the South American country's government before Chávez's March 5 death.

He accused Jacobson of supporting opposition candidate Henrique Capriles, although he didn't provide any evidence.

"We want normal relations with the United States based on mutual respect," Jaua said.

He said the government had formally "suspended any contact and any communication that had been established with the call of Mrs. Jacobson in the month of November." But he left the door open to possible future renewed contact, noting that consular relations remain in place.

The U.S. Embassy in Caracas had not responded to a request for comment by Wednesday afternoon.

Venezuela's government expelled two U.S. military attaches this month for allegedly talking to members of the country's armed forces. Washington responded by ejecting two Venezuelan diplomats, who were honored by Jaua Wednesday.

The two countries haven't had ambassadors posted in each other's capitals since 2010.

Ahead of an April 14 presidential vote, Venezuelan officials have escalated their rhetoric against the U.S., with acting leader and government candidate Nicolás Maduro even accusing the U.S. of infecting Chávez with the cancer that killed him.

And even as Maduro has said U.S. officials are backing Capriles' candidacy, he has accused two former U.S. assistant secretaries of state of plotting to kill Capriles in the hopes of fomenting a coup. The U.S. State Department has rejected that accusation while calling for free and fair elections.

On Wednesday, Jaua accused the expeled U.S. diplomats of seeking Central American mercenaries to carry out the supposed assassination plot.

"Hopefully there will be a rectification and the meddling of the United States will cease," Jaua said.

Wednesday's action and the growing accusations mark "a level of paranoia that is very much on the rise," said Cynthia Arnson, director of the Latin American Program at the Washington-based Woodrow Wilson International Center for Scholars.

"Whether they believe the allegations or are simply using them for political effect, it marks a very troubling turn in the relationship," Arnson said. "And once it's no longer politically useful to whip up fear of imperialism for internal political purposes, what concretely will happen in the relationship?"

Chávez was fond of calling the United States "the empire" and famously referred to President George W. Bush as the "devil" at a U.N. General Assembly meeting. Such words endeared the leftist leader to his followers, already suspicious after U.S. officials recognized the replacement government that took control after Chávez was ousted briefly in a 2002 coup.

Maduro has repeated many of Chávez's tactics in his electoral bid, down to the hours-long speeches and nationalistic rhetoric.

Recognizing the fragile atmosphere in Venezuela, U.S. officials have pointedly not made comments that could be used for political ends by Chávez's successors, Arnson said.

"The truly bizarre element is that even with staying out, these accusations are surfacing," she said.

Based on reporting by The Associated Press.

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