WASHINGTON (Agencies) - The US State Department on Friday ordered the Venezuelan Ambassador here expelled, amid tit-for-tat expulsions with both Venezuela and Bolivia that also added a twist to US-Russian tensions. The US Treasury said meanwhile it was freezing any US assets of two senior Venezuelan intelligence officials and a former interior minister after accusing them of aiding Colombian rebels involved in drug trafficking. And Venezuelan President Hugo Chavez warned meanwhile that his country will act militarily if his embattled ally Evo Morales in Bolivia is toppled, after highlighting the arrival this week of two Russian Tu-160 strategic bombers. An increased Russian military presence in Latin America has added a twist to Washington's growing tensions with Moscow over last month's Russian military incursion into US-backed Georgia, formerly part of the Soviet Union. State Department spokesman Sean McCormack said he regretted the expulsions by Caracas and La Paz, but claimed they reflected the "weakness and desperation" of both leaders. McCormack noted that Chavez said he was recalling his Ambassador to Washington, Bernardo Alvarez Herrera, and did not know whether he had actually left already, but added "he will be expelled," rather than simply recalled. Chavez on Thursday night ordered US Ambassador Patrick Duddy to leave the country within 72 hours, in a move he described as an act of solidarity with Venezuela's ally Bolivia. Facing violent anti-government protests, Morales on Wednesday ordered US Ambassador Philip Goldberg expelled, accusing him of contributing to divisions in the country which the government warned was headed towards "civil war." The charges are "baseless," said McCormack, who said the expulsion "is a grave error that has seriously damaged" US-Bolivian relations, including efforts to fight drug trafficking. The State Department then ordered the expulsion of Bolvia's ambassador to Washington, Gustavo Guzman. In addition to ordering Ambassador Duddy to leave, Chavez announced Thursday that his government had uncovered a coup plot hatched by active and retired military officers, which he said had tacit US approval. McCormack also rejected those charges. Chavez has also announced naval exercises with Venezuelan and Russian warships in November, highlighting what he calls a "strategic" alliance with Moscow. The Treasury also sanctioned Venezuelan officials Hugo Armando Carvajal Barrios and Henry de Jesus Rangel Silva and former official Ramon Rodriguez Chacin over aid to the Revolutionary Armed Forces of Colombia (FARC). The three "armed, abetted, and funded the FARC, even as it terrorized and kidnapped innocents," according to a statement from Adam Szubin, who heads the Treasury's Office of Foreign Assets Control (OFAC). Venezuelan President Hugo Chavez said American Ambassador Patrick Duddy is no longer welcome, just as his close ally Bolivia expelled the American envoy from La Paz a day earlier, he said. "Shitty Yankees. Go to hell a hundred times" he told the American envoy. "It is 7:15, the Yankee ambassador in Caracas has 72 hours, starting now, to leave Venezuela," Chavez said at a public event in the port city of Puerto Cabello, west of Caracas. "At this moment, we begin to evaluate our diplomatic relations with the US government," he added. The Venezuelan President warned that: "if they topple Evo, or kill him, those carrying out Bolivia's coup should know they are giving me a green light to support any armed movement in Bolivia." Earlier in the day Chavez said the presence of two Russian Tu-160 strategic bombers in Venezuela is a "warning" to the US "empire," as he announced another coup plot against him had been foiled and suspects arrested. "It's a warning. Russia is with us ... we are strategic allies," said Chavez. "It is a message to the empire. Venezuela is no longer poor and alone." That after Chavez also threatened to halt the supply of oil to the United States, its main client, if Washington attacks his government. "If there is any aggression towards Venezuela" from Washington, "there would be no oil for the people of the United States," said Chavez, who used coarse expletives to disparage the US government.