A rising number of undocumented migrants entering the U.S. to apply for asylum are South America's middle class, according to officials.

Aid workers and authorities say they are flying to the border by plane.

The majority crossing the U.S./Mexico border are poor but officials say this recent change in migration patterns reflects the impact of COVID-19.

The pandemic has taken a toll on economies in South America, pushing many to migrate that likely wouldn't have left home in the past, reports the Wall Street Journal.

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