Mexico’s president said Friday that he is willing to help out with a surge of migrants that led to the closure of border crossings with the United States, but he wants the U.S. government to open talks with Cuba and send more development aid to migrants’ home countries.

The comments by President Andrés Manuel López Obrador came a day after the U.S. announced that a delegation of top U.S. officials would visit Mexico for talks on how to enforce immigration rules at the two countries’ shared border.

Also Friday, U.S. authorities reopened two cross-border railroad crossings in Texas, while keeping operations limited or suspended at other border crossings. And figures released Friday show arrests for crossing the U.S. border from Mexico nudged 1.2% higher in November from October, one of the latest signs of what Troy Miller, acting commissioner of U.S. Customs and Border Protection, described this week as “unprecedented” migration flows.