U.S. first lady Michelle Obama has ended her trip to Mexico with a roundtable discussion with some of the country's student leaders.

Mrs. Obama met with about a dozen young people Thursday at a colonial-era hacienda in an upscale part of Mexico City.  

Through interpreters, the young people - ranging in age from late teens to mid-20s - shared personal stories with the first lady, discussing a variety of topics ranging from the struggles of indigenous people to drug addiction.  

Mrs. Obama urged the students to continue working but be patient while they work for change in Mexico.  The first lady left for the airport soon after the meeting, departing for San Diego, California, where she will attend events to promote her campaign against childhood obesity.

On Wednesday, Mrs. Obama met with her Mexican counterpart Margarita Zavala de Calderon. The two toured a museum and Mexico City schools.  Mrs. Obama also gave a speech to university students about meeting world challenges.

Before arriving in Mexico, Mrs. Obama Tuesday made an unannounced visit to Haiti to underscore the U.S. commitment to help the country recover from the January 12 earthquake.  The quake killed at least 217,000 people and left more than a million others homeless.