Officials in Long Beach are warning residents about a planned 'Bash Mob' potentially planned for Friday afternoon. In a 'Bash Mob,' an unruly but organized crowd — sometimes as many as 100 people — race through the streets committing thefts, petty crimes, assaults and property damage. A 'Bash Mob' most recently occurred in the Long Beach area on July 9 in the Pike and City Place areas downtown, according to Long Beach Police Sgt. Aaron Eaton. One person was arrested and several business reported property damage during the incident.