The Latest on Pope Francis' visit to Mexico (all times local):

8:10 a.m.

Mexicans bundled against the cold are arriving at a huge field in a crime-ridden suburb of Mexico City for what is expected to be the biggest Mass of Pope Francis' five-day trip.

After spending his first full day in the grandeur of Mexico City's historic center, Francis is heading to the capital's periphery for a Mass on Sunday in Ecatepec, a sprawling suburb of 1.6 million where drug cartels hold sway and the murder rate, especially for women, is particularly high.

Pilgrims sporting white baseball caps wrapped themselves in blankets to guard against temperatures that dipped in to the 30s Fahrenheit (about 3 celsius) as they trudged along the roads leading to the Mass site, a sprawling field that has a capacity of 400,000 people.

Francis is expected to offer a message of hope and encouragement for a part of Mexico where extortion and disappearances are a near-daily part of life.