Mexican President Vicente Fox has tightened security within his administration after authorities discovered that details of his travel plans had been leaked to drug traffickers.
Monday's announcement comes a week after Mexican federal authorities detained Nahum Acosta, the official responsible for organizing Mr. Fox's visits around the country. Mexican newspapers report he was caught on video meeting with a leading drug trafficker in Mexico City.
The developments have raised concern because drug traffickers often kill government officials. But so far there is no evidence of an assassination plot against President Fox.
The Mexican president promised Monday to continue his fight against organized crime, repeating a vow to give drug traffickers "the mother of all battles."
Some information for this report provided by AP, Reuters and AFP.