A supporter of Venezuela's opposition leader Juan Guaido kneels in front of police standing guard at the Francisco de Paula Santander International Bridge. AFP
Opponents of Venezuelan President Nicolas Maduro clash with members of the National Guard on the border between Brazil and Venezuela. EPA
Venezuelan demonstrators throw stones during clashes with authorities at the border between Brazil and Venezuela. AP Photo
Venezuelan demonstrators gather during clashes at the border between Brazil and Venezuela. AP Photo
Opposition protesters face the Venezuelan Police at the Simon Bolivar International Bridge in Cucuta, Colombia. EPA
A protester uses a slingshot during clashes with Venezuelan soldiers along the border between Venezuela and Brazil. Reuters
A supporter of Venezuela's opposition leader Juan Guaido kneels in front of members of Venezuela's National Police standing guard at the Francisco de Paula Santander International Bridge between Colombia and Venezuela. AFP
Supporters of Venezuela's opposition leader Juan Guaido struggle with police standing guard at the Francisco de Paula Santander International Bridge. AFP
An opposition supporter demonstrates in front of police standing guard at the Francisco de Paula Santander International Bridge. AFP
Demonstrators react after capturing a gas mask, helmet and shield from a Venezuelan soldier during clashes on the Simon Bolivar International Bridge near the border with Venezuela in Cucuta, Colombia. Bloomberg
A truck is lit on fire during clashes on the Simon Bolivar International Bridge. Bloomberg
Demonstrators carry a wounded man during a clashes on the Simon Bolivar International Bridge. Bloomberg
A supporter of Venezuela's opposition leader Juan Guaido kneels in front of police standing guard at the Francisco de Paula Santander International Bridge. AFP
Opponents of Venezuelan President Nicolas Maduro clash with members of the National Guard on the border between Brazil and Venezuela. EPA
Venezuelan demonstrators throw stones during clashes with authorities at the border between Brazil and Venezuela. AP Photo
Venezuelan demonstrators gather during clashes at the border between Brazil and Venezuela. AP Photo
Opposition protesters face the Venezuelan Police at the Simon Bolivar International Bridge in Cucuta, Colombia. EPA
A protester uses a slingshot during clashes with Venezuelan soldiers along the border between Venezuela and Brazil. Reuters
A supporter of Venezuela's opposition leader Juan Guaido kneels in front of members of Venezuela's National Police standing guard at the Francisco de Paula Santander International Bridge between Colombia and Venezuela. AFP
Supporters of Venezuela's opposition leader Juan Guaido struggle with police standing guard at the Francisco de Paula Santander International Bridge. AFP
An opposition supporter demonstrates in front of police standing guard at the Francisco de Paula Santander International Bridge. AFP
Demonstrators react after capturing a gas mask, helmet and shield from a Venezuelan soldier during clashes on the Simon Bolivar International Bridge near the border with Venezuela in Cucuta, Colombia. Bloomberg
A truck is lit on fire during clashes on the Simon Bolivar International Bridge. Bloomberg
Demonstrators carry a wounded man during a clashes on the Simon Bolivar International Bridge. Bloomberg
A supporter of Venezuela's opposition leader Juan Guaido kneels in front of police standing guard at the Francisco de Paula Santander International Bridge. AFP