Mexico City's Zocalo hosted Independence Day festivities on Sept. 15 and 16. Large crowds arrived for the annual Cry of Independence ceremony. The Zocalo is the capital's principal square. It became packed for the occasion. Telemundo and Univision were at the Zocalo and covered the ceremony live. The celebration commemorates Mexico's independence. It drew crowds to the public square. Organizers planned events for both days. The annual observance is a major national occasion. The event ran on both days of the celebration.