GENEVA, Switzerland (AFP) — Nearly two million people have fled Venezuela's economic and political crisis since 2015, the UN said Monday, calling for a “non-political” response to an exodus that is straining regional resources.

“Some 5,000 people are now leaving Venezuela daily — the largest population movement in Latin America's recent history,” United Nations Refugee Agency (UNHCR) chief Filippo Grandi told the organisation's executive committee.

“A non-political and humanitarian approach is essential to help states receiving them in growing numbers,” he added.

Citing government data, UNHCR spokesman William Spindler told AFP that 1.9 million people had left the country since 2015, an increase on a previous count of 1.6 milion.

According to the UNHCR, 2.6 million Venezuelans are now living abroad.

Colombia, which has taken in more than a million Venezuelans, called last week for a regional response, saying the migrant crisis was costing it about 0.5 per cent of gross domestic product — around US$1.5 billion dollars.

Grandi applauded Latin American countries for keeping their borders open, but said the regional response needed more “coherence”. But the countries concerned also needed more support, he conceded.

Oil income-dependent Venezuela's economic woes began in 2014 with the crash in the price of crude.

President Nicolas Maduro's Government has since been slapped with a range of sanctions over its crackdown on the Opposition and civil society critics.