Governors from Mexico's 21 states and the federal district of Mexico City, mayors, judges, prosecutors and senior police and security officials were at the meeting hosted by President Felipe Calderon at the National Palace.

BBC: Mexico to combat rising violence

Now the reform must to be approved by a majority of the 31 Mexican states and the Federal District (Mexico City).

BBC: Mexico Congress passes sweeping telecoms bill

Today, Xochimilco is one of the 16 boroughs within the Mexican Federal District that makes up Mexico City proper.

BBC: Finding farms, and solitude, in Mexico City