On Sunday, six opponents of the Venezuelan administration who have taken refuge at the Argentine embassy in Caracas for months protested the presence of local police and intelligence officers outside the building for several hours. 

Argentina's Foreign Ministry described the action as harassment, while the US government called it a serious violation of international law. The majority of the opponents are members of the Vente Venezuela party, which is led by María Corina Machado, a former lawmaker. It condemned "a new siege by hooded officials" that started on Saturday night and lasted into Sunday. The incident took place just hours after Machado urged a large mobilisation on December 1. In response, Venezuela's interior minister accused her of being involved in a new conspiracy against President Nicolás Maduro's government.

The diplomatic headquarters is still without electricity, and "regime vehicles" are encircling it, obstructing traffic flow, according to a statement from Vente Venezuela. Additionally, it claimed that communication signals were jumbled. In a statement released late Saturday, Argentina's Foreign Ministry said that the blocking of local streets and the presence of armed troops "constitute a disturbance of security." Additionally, it demanded that the incident be condemned by the world community, which the US did. The United States "strongly condemns the acts of harassment against asylum seekers," according to a post made on X by the US Embassy in Venezuela on Sunday.

“The deployment of armed forces and blockades seriously violate international law,” it said. “We demand that the Venezuelan regime respect its international obligations, cease these intimidating actions and guarantee safe passage for asylum seekers.” Opposition members entered the embassy in March after the Venezuelan Attorney General's Office issued arrest warrants, accusing them of inciting violence to destabilise the government. After the Venezuelan government ordered the expulsion of Argentine diplomatic personnel after its president, Javier Milei, declared that he would not recognise "another fraud" in Venezuela following the contentious July elections, Argentina requested that Brazil guard its embassy in August.

A month later, Venezuela claimed to have proof that the embassy was being used "for the planning of terrorist activities and assassination attempts," and revoked Brazil's permission to guard it. These charges have been denied by Argentina and Brazil.