There were unconfirmed witness reports the chopper was carrying an anti-government banner
Venezuela's economy is near collapse due to the crash in crude prices
It was the second weekend in a row that Venezuela's socialist government opened the long-closed border with Colombia
Many started waiting before dawn and came back with essentials that have become impossible to find amid 700% inflation
Venezuela is undergoing deep political conflict that has raised tensions in the volatile South American nation
Thursday's meeting on the country's economic and political crisis could see its possible suspension be discussed