President Trump said Friday he still believes Mexico should pay for a wall along the southern border between the U.S. and Mexico, reaffirming his commitment to the idea shortly after meeting with Mexican President Enrique Pena Nieto in Germany.

"Absolutely," Trump said when asked if he expects Mexico to fund construction of the wall.

"We're negotiating NAFTA and some other things with Mexico and we'll see how it all turns out, but I think we've made very good progress," Trump told reporters after the meeting with Pena Nieto.

Mexican officials have said repeatedly that they have no intention of paying for the project.

Trump said his day at the G-20 summit in Hamburg had been "successful" so far. His bilateral meeting with Pena Nieto was the first on his schedule for a day filled with talks among leaders of the world's largest economies.

The president will meet later in the day with Russian President Vladimir Putin.