Trump in Mexico: US has right to build border wall

Republican White House hopeful Donald Trump on Wednesday stood alongside Mexico's President Enrique Pena Nieto and declared that the United States has the right to erect a border wall to stem illegal immigration.

"We recognize and respect the right of either country to build a physical barrier or wall on any of its borders," Trump told reporters at the presidential residence after the two men held closed-door talks.

He said however they did not discuss who will pay for the wall, despite Trump persistently stating throughout his campaign that Mexico will foot the bill.

Trump was making a surprise visit to Mexico.