The humanitarian crisis in Venezuela has led to one of the largest mass migrations in Latin America’s history.

President Nicolás Maduro blames “imperialists” - the likes of the US and Europe - for waging “economic war” against Venezuela and imposing sanctions on many members of his government.

But his critics say it is economic mismanagement - first by predecessor Hugo Chávez and now President Maduro himself - that has brought Venezuela to its knees.

The country has the largest proven oil reserves in the world. It was once so rich that Concorde used to fly from Caracas to Paris. Now, its economy is in tatters.

Four in five Venezuelans live in poverty. People queue for hours to buy food. Much of the time they go without. People are dying from a lack of medicines. Inflation is at 82,766% and there are warnings it could exceed one million per cent by the end of this year.

Venezuelans are trying to get out. The UN says 2.3 million people have fled the country - 7% of the population. More than a million have arrived in Colombia in the past 18 months.

Many of those Venezuelans have come over the Simón Bolívar International Bridge.