Mexico City, February 15 (RHC)-- Pope Francis took aim at drug cartels and corruption in Mexico during a visit to one of the cities most impacted by the U.S.-backed drug war.

Pope Francis condemned the drug trade's "dealers of death" and urged Mexicans to shun the devil's lust for money as he led a huge open-air Mass for more than 300,000 people Sunday in Ecatepec.

At the Mass, the Pope said: "Let us get it into our heads: With the devil, there is no dialogue."

Francis brought a message of encouragement on the second full day of his trip to residents of Ecatepec, a poverty-stricken Mexico City suburb of some 1.6 million people where drug violence, kidnappings and gangland-style killings, particularly of women, are a fact of life.

On Monday, Pope Francis traveled from Mexico City to Chiapas.  He celebrated Mass at a sports stadium in San Cristóbal de las Casas.