Deadly clashes have erupted in border towns across Venezuela as opposition activists try to bring aid into the country across government blockades.
Troops have fired tear gas and rubber pullets at protesters. There have been reports of some security force members abandoning their posts and defecting.
President Nicolás Maduro has partially closed the country’s borders to try to stop the aid being delivered.
Opposition leader Juan Guaidó is behind the foreign aid’s collection.
He declared himself as interim president last month and vowed that the deliveries, which include food and medicine, would enter Venezuela on Saturday with the help of volunteers.
On social media he praised his supporters for their “unprecedented heroism” in trying to help get the supplies in against the wishes of the government.
Meanwhile, President Maduro has said he has broken off diplomatic relations with Colombia over its role in events.