Honduran President Juan Orlando Hernández told Vice President Mike Pence that a migrant caravan approaching the U.S. southern border is being financed by Venezuela, Pence revealed in a Washington Post appearance Tuesday.

.@costareports asks @VP Mike Pence about @realDonaldTrump’s claim that unknown Middle Easterners had infiltrated the migrant caravan heading to the U.S. border. “It’s inconceivable that there are not people of Middle Eastern descent,” Pence said. pic.twitter.com/7CRmyggfHG — Washington Post Live (@postlive) October 23, 2018

“The President of Honduras told me this was organized by leftist groups in Honduras and financed by Venezuela,” Pence declared. A senior administration official confirmed to The Daily Caller a call took place between Hernandez and Pence regarding the migration situation.

The caravan has swelled to nearly 6,000 people with the apparent intention of entering the U.S. and claiming asylum. Current U.S. law requires a lengthy asylum adjudication process and the Trump administration believes many migrants are using loopholes in U.S. law to illegally immigrate.

President Donald Trump has vowed to punish the governments of Honduras, Guatemala, and El Salvador for failing to stop its citizens heading north. Trump has also faulted the government of Mexico for failing to stop the caravan of migrants and has publicly floated the idea of closing the U.S.-Mexico border as a last resort.