Preparations are on track for Mexico's July 1 presidential election and the drug-related violence in the country has not affected the process, the Federal Electoral Institute, or IFE, said.

Nearly 2,400 of the country's 66,000 total geographic districts have received "special attention" due to the violence, IFE chairman Leonardo Valdes said in a press conference with foreign correspondents on Wednesday.

No homicides have been reported among the thousands of people being trained as poll workers for the 143,190 election precincts across Mexico, the IFE chief said.

"Fortunately, there have been no (serious) incidents involving the trainers or the trainees," Valdes said.

The July 1 elections will be the "biggest and most complex" in Mexican history, the IFE said.

The general elections will feature an all-time high of 79.4 million voters eligible to cast ballots, as well as a record 2,127 public posts up for grabs, ranging from the presidency to municipal council seats.

The election is taking place at a time when Mexico is dealing with a wave of drug-related violence that has left more than 50,000 people dead since 2006.

About 1 million people will work on the election, with each precinct manned by seven poll workers, the IFE said.

The Organization of American States, meanwhile, said it planned to send election observers to Mexico for the first time.

OAS Secretary-General Jose Miguel Insulza made the announcement on Wednesday, noting that the hemispheric organization had sent observers to Mexico in the past for lower-level elections, such as gubernatorial contests, but never for a presidential contest.

"The Mexican electoral system has been strengthened significantly in recent years, and much progress has also been made in the framework of foreign relations," Insulza said. EFE