Venezuelan military officers blocked a bridge on the border with Colombia ahead of an anticipated humanitarian aid shipment Tuesday, as opposition leader Juan Guaido stepped up his challenge to President Nicolas Maduro's authority.

Washington (AFP) - Washington is prepared to exempt Venezuelan military leaders from punitive sanctions if they recognize opposition leader Juan Guaido as the South American nation's interim leader, President Donald Trump's national security advisor said Wednesday.

Caracas (AFP) - Venezuelan military officers blocked a bridge on the border with Colombia ahead of an anticipated humanitarian aid shipment, as opposition leader Juan Guaido stepped up his challenge to President Nicolas Maduro's authority.

CARACAS (Reuters) - Venezuela's opposition on Wednesday said it would use a U.S.-based fund to receive some of the country's oil income in a key step to bankroll its efforts to dislodge President Nicolas Maduro.

CARACAS, Venezuela _ Venezuelan authorities have set up barriers to block the entry of donated food and medicine from neighboring Colombia amid an escalating political dispute over humanitarian aid that other countries have rushed toward the embattled country's borders.

Caracas (AFP) - Venezuela's opposition leader Juan Guaido stepped up efforts Wednesday to win recognition from EU holdout states and insisted the armed forces allow desperately needed humanitarian aid to enter the country.