The mayor of Acatepec , a small town some 310 miles ( 500 km ) south of Mexico City , sent a letter to Mexico 's National Human Rights Commission complaining the army 's heavy presence in the town would interfere with the Oct. 6 election .
<response> The mayor of <location>Acatepec</location> , a small town some 310 miles ( 500 km ) south of <location>Mexico City</location> , sent a letter to <location>Mexico</location> 's <organization>National Human Rights Commission</organization> complaining the army 's heavy presence in the town would interfere with the Oct. 6 election . </response>