U.S. Treasury Secretary Timothy Geithner expressed support Wednesday for Prime Minister-elect Mariano Rajoy's plans for the Spanish economy, aides to the future premier said.

The two men met in this southern French city.

Rajoy was accompanied by his coordinator for international relations, Jorge Moragas, and one of his top economic advisers, lawmaker Alvaro Nadal.

Geithner did not make any statement after the meeting, but sources with Rajoy's conservative Popular Party said that the secretary conveyed to the prime minister-elect President Barack Obama's congratulations on the PP's victory at the polls last month.

The U.S. official urged Rajoy to fully implement the program he outlined during their meeting here, the PP sources said.

Rajoy traveled to Marseille for the 20th European Popular Party Congress, but before that he was able to meet with Geithner, who is on a European tour to gather opinions on the euro zone crisis.

At the meeting, the PP sources said, Geithner learned first-hand about the economic plans Rajoy wants to launch in Spain and the prime minister-elect explained to him his initiatives, especially the commitment to bring down the deficit over the next two years and his willingness to overhaul the labor market and financial system as soon as possible.

The policy measures received Geithner's support, according to the PP sources, who said that the secretary told Rajoy: "What you want to do in an economy like Spain's is what has to be done."

Spain's prime minister-elect is to meet Thursday with German Chancellor Angela Merkel and French President Nicolas Sarkozy.