Trump threatens to shut Mexico border amid migration surge
President Donald Trump has said he is likely to close the US border if Mexico does not do more to stop migrants reaching the United States.
The closure would disrupt border crossings, threatening trade worth billions of dollars.
Mr Trump's threat follows a surge in migrants travelling through Mexico to seek asylum in the US.
Mexico's President Andrés Manuel López Obrador said he would not be drawn into confrontation on the issue.