SOUTH ORANGE - Police in South Orange are hoping that the installation of cameras will help prevent future flash mobs and crime.

Officials say surveillance cameras will be installed in downtown South Orange in the next one to two months. Last year, hundreds of young people descended on the area in March participating in a so-called flash mob. The incident was captured on cell phone video, but caught police by surprise. A similar gathering in February of this year resulted in assaults and arrests, and prompted police to focus a lot of their attention downtown on weekends.

Village trustees say there's disagreement over how and where the cameras should be used and whether to post signage warning people that they're being watched.