Mexican non-government organization the Citizen's Council for Public Security and Criminal Justice sent on Wednesday an open letter to U.S. President Barack Obama, ahead of his visit, asking for support against "crime and terrorism".
In the letter hand-delivered to the U.S. Embassy in Mexico City, the organization said "there are towns where criminals appear to control residents' entire lives," naming Mexico-U.S border cities of Torreon, Reynosa and Juarez as the worst affected.
Juarez saw 1,600 murders in 2008, forcing the federal government to deploy 11,000 troops and police to its streets.
According to the organization, kidnapping cases have more than doubled in the last two years. More than 1,000 kidnapping cases have been reported, 75 of which ended with the death of the victims.
Obama will visit Mexico on April 16 and 17.