Venezuela's intelligence agency along with security forces arrested Venezuela's National Assembly vice-president Edgar Zanbrano, Guaido's closest ally.
Self-proclaimed interim president Guaido tweeted that the Maduro government had "kidnapped" the vice president of the opposition controlled National Assembly. "They are trying to break up the body that represents all Venezuelans, but they will not achieve it," says his tweet.
Juan Guaido says he remains a free man because Nicolas Maduro is afraid of the consequences of arresting him.
"Because they're scared. Those that try to spread or generate a perception of control are the ones that don't have it," Guaido said in an interview with CNN.