Top U.S. officials held talks with President Andrés Manuel López Obrador in Mexico on Tuesday to discuss immigration issues ahead of a planned economic summit next month, the White House said on Wednesday.

The talks, which followed a Monday phone call between López Obrador and U.S. Vice President Kamala Harris, laid the groundwork for the relaunch of the U.S.-Mexico economic dialog on Sept. 9, it said in a statement.