A security zone has been declared around the Coliseo to protect tourists from violent crime incidents. The area has seen a pattern of increasing delinquency, according to authorities.

A recent incident involved a group of approximately 50 young people attacking police officers with fireworks, leaving some officers injured. This event has prompted efforts to address the security issues in the historic area.

Further details about the situation and the measures being taken are available from the source, including reports from CNN by Barbie Latza Nadeau and Antonia Mortensen.