Three members of the Venezuelan national guard have left their posts ahead of an opposition-led effort to to bring aid into the country, Colombia's migration agency said.
In a separate development, troops fired tear gas at a group of people looking to cross into Colombia to work, the Reuters news agency reported.
Tensions have been rising over a row about the delivery of humanitarian aid.
Two people were killed by Venezuelan forces near the border with Brazil.
Local media report people jumping the barricades to cross the border at the Venezuela-Colombia border, while opposition MPs post defiant messages on social media denouncing the use of force.
Self-declared interim president Juan Guaidó urged the military to allow aid trucks to enter, calling on them to "put themselves on the side of the people"…