Mexico City's Zocalo welcomed 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 event. Telemundo and Univision were at the Zocalo and covered the ceremony live. The ceremony commemorates Mexico's independence. It drew crowds to the public square. Organizers prepared festivities for each day. The annual event is a major national occasion. The event continued on both days of the celebration.