KEY POINTS
  • Venezuelan opposition leader Juan Guaido said on Tuesday he had begun the "final phase" of his plan to oust President Nicolas Maduro.
  • He called on Venezuelans and the military to back him to end Maduro's "usurpation."
  • Guaido, in a video posted on his Twitter account, was speaking in the company of men in military uniform and opposition politician Leopoldo Lopez.
Venezuela's opposition leader Juan Guaido gestures during the 'Venezuela Aid Live' concert, organized to raise money for the Venezuelan relief effort, at the head of the Tienditas International Bridge in Cucuta, Colombia, on February 22, 2019.

Venezuelan opposition leader Juan Guaido said on Tuesday he had begun the "final phase" of his plan to oust President Nicolas Maduro, calling on Venezuelans and the military to back him to end Maduro's "usurpation."

A Reuters journalist later saw security forces firing tear gas at Guaido and around 70 mostly young armed men in military uniform outside the La Carlota air force base in Caracas. Hundreds of civilians also joined the group.