| The main crossing links Cucuta in Colombia to San Antonio de Tachira in Venezuela |
Venezuela has closed its border with Colombia for 72 hours in the latest measure to combat smuggling gangs.
| Shops are warning customers they will no longer accept 100-bolivar notes |
| President Maduro said the measure was "inevitable and necessary" |
'Destroy the mafia'
President Maduro said the move would stop gangs hoarding the currency. "Let's destroy the mafia before the mafias destroy our country and our economy," he said on national television."This measure was inevitable, it was necessary," he added. "The mafias will go bust."
Venezuela last closed most border crossings with Colombia in August 2015. The border was partially reopened a year later. In 2015, the Colombian government complained that it had not been consulted or informed.
Mr Maduro said the gangs held more than 300bn bolivares worth of currency, most of it in 100-bolivar notes. President Maduro said there were "entire warehouses full of 100-bolivar notes in the [Colombian cities of] Cucuta, Cartagena, Maicao and Buaramanga".
"I have given the orders to close all land, maritime and air possibilities so those bills taken out can't be returned and they're stuck with their fraud abroad," he said on Sunday.
Critics of Mr Maduro have predicted chaos and doubt that the facilities will be in place for people to exchange all their 100-bolivar notes.
"When ineptitude governs! Who would possibly think of doing something like this in December amid all our problems?" opposition leader Henrique Capriles wrote on Twitter (in Spanish).