UPDATE 2-Venezuela's Guaido says 600 military officers have abandoned Maduro

Venezuelan opposition leader Juan Guaido, visiting Paraguay on Friday to raise support for a change of government in his country, said that 600 members of the military had abandoned the government of President Nicolas Maduro in recent days. Guaido, head of Venezuela's National Assembly, has invoked constitutional provisions to assume an interim presidency, arguing that Maduro's re-election last year was fraudulent. Guaido has since been recognized by most Western nations as the rightful leader of Venezuela.

However, Maduro still retains the loyalty of the bulk of Venezuela's armed forces and controls state institutions. "In the next few hours we will announce new protest marches," Guaido said in Asuncion at a news conference, after meeting with Paraguayan leader Mario Abdo, who received the opposition figure as a head of state.

"We have spoken clearly to the Armed Forces of Venezuela. They have seen more than 600 officers in recent days switch to side with the constitution," he added. "There is a very clear process of transition to democracy." His press team said he was scheduled to go to Argentina later on Friday to meet with President Mauricio Macri, a strong critic of Maduro. Argentina's foreign ministry confirmed the two would meet in Buenos Aires and hold a news conference.

Guaido has been traveling around the region, seeking to drum up support. He has visited Brazil and Colombia this week, but said he would return to Caracas by Monday, where he faces possible arrest for disobeying a Supreme Court order that he should not leave the country pending an investigation. The United States, which backs Guaido, will continue to take "appropriate actions" against the government of Maduro, including restricting travel visas for dozens of his associates, U.S. special envoy Elliott Abrams said on Friday. (Reporting by Daniela Desantis, writing by Hugh Bronstein, editing by Matthew Lewis and Rosalba O'Brien)