MEXICO CITY (AP) — Relatives of women and girls murdered or missing in Mexico have marched through the capital to demand justice.

The demonstration set out Sunday from the Independence Monument and headed for Mexico City's sprawling main square to set up an offering near a massive altar erected to mark Dia de Muertos, or Day of the Dead.

They carried purple crosses inscribed with the names of dozens of victims.

Dia de Muertos is observed Nov. 1-2. The demonstration was billed as a "Dia de Muertas" march, or "Day of the Dead Women."

Nine women are killed daily in Mexico, according to the U.N.

Organizer Frida Guerrero says protesters were demanding a "real interest" on the part of authorities to address killings of women.