By the numbers: At the start of the year, migrants from Nicaragua and a handful of South American nations made up just 6% of people encountered by border officials. Last month, they accounted for 18% — three times more.

There’s been a rise in migrants traveling from South America through the treacherous Darién Gap into Panama, as Axios previously reported.

While the percentage of encounters with migrants who are Haitian or Cuban has hovered around 4% recently, the number is 2.5 times the figure from January.

Border officials had more than 9,000 encounters with Haitians and Cubans last month.