Dozens of protesters broke through a security fence near the site of the Democratic National Convention on its opening day Monday as thousands took to the streets to voice their opposition to the war in Gaza, the reports. Families with babies in strollers, students, elected leaders and others holding signs and flags joined the march to the United Center, where the convention is being held, . As the larger group marched peacefully, a few dozen who broke away tore down pieces of the security fence.

Several protesters who had managed to get through the fence were detained and handcuffed by the police. Officers put on gas masks as some protesters tried to bring down a second fence set up in front of police. Authorities said the inner security perimeter surrounding the convention site was not breached and there was no threat to those attending the convention.

Chicago Police Superintendent Larry Snelling said some of the protesters who took down the fence threw water bottles and other items at police. Police de-escalated the situation without using their batons or chemicals, he said. Members of the crowd chanted "End the occupation now" and then "The whole world is watching!" just as anti-Vietnam War protesters did during the infamous 1968 convention in Chicago when police clashed with protesters on live television.

Families gathered on their porches and outside their doors as protesters marched by. Some children wore keffiyeh, blew bubbles or held "free fist bumps" signs. The Chic.