Cucuta, Colombia (CNN) The Venezuelan government, led by embattled President Nicolas Maduro, has blocked a bridge connecting Venezuela to Colombia, according to Colombian officials and a CNN photojournalist at the scene. The move effectively blocks the passage of humanitarian aid called for by Venezuela's opposition, should it be delivered via this route.

New images show an orange oil tanker and two large blue containers positioned midway across the three-lane Tienditas Bridge, which connects Cucuta, Colombia, with Venezuela.

Cucuta is one of three collection points for international humanitarian aid called for by Venezuela's opposition leader and self-declared president Juan Guaido amid Venezuela's debilitating economic crisis.

Last week, Guaido identified the three collection points: the Brazil-Venezuela border, an as-of-yet unidentified Caribbean island, and Cucuta.

An oil tanker and two large containers blocked passage across the Tienditas Bridge on Wednesday.

Maduro has rejected the international aid, saying, "We are not beggars."

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