Mexican President Enrique Peña Nieto met privately Thursday with the mayor of San Antonio, Texas, Julian Castro, at the Los Pinos presidential residence.

According to a communique by the Mexican government, Peña Nieto was accompanied by his foreign minister, Jose Antonio Meade, and by the deputy secretary for North America, Sergio Alcocer Martinez de Castro.

Also attending the meeting were Castro's chief of staff, Robbie Greenblum, San Antonio councilor Ray Lopez and the foreign affairs chief of the U.S. Embassy in Mexico, Laura Dogu.

The communique regarding the meeting gave no further details.

Castro, 38, the son of a Mexican-American immigrants' rights defender, in 2001 became San Antonio's youngest-ever councilor and in 2009 he became the city's youngest mayor.

On Sept. 4, 2012, he became the first Hispanic to deliver the keynote speech at the Democratic Party Convention in Charlotte, North Carolina, where President Barack Obama was ultimately nominated by the party for reelection.

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