A third Mexican general is being held by Mexican authorities over alleged link to drug smuggling cartels.
Gen Ricardo Escorcia Vargas, Gen Thomas Angeles Dauahara and Gen Roberto Dawe Gonzales are suspected of connections to the Beltran Leyva cartel.
President Felipe Calderon launched a war on drugs 6 years ago, with troops deployed all over the country.
The generals all occupied important posts in the government's anti-drugs effort.
Gen Angeles was assistance defence minister from 2006-2008, Gen Dawe was commander of an army division and Gen Escorcia was in charge of the military in Morelos, the state were Beltran Leyva is based.
Drugs related violence since 2006 has cost over 50,000 lives in Mexico.