On the same day, the Rohnert Park Department of Public Safety launched an investigation in response to nine clown sightings being reported in the city in the past few days. In nearby Santa Rosa, the Santa Rosa City Schools worked with the Santa Rosa Police Department to investigate clown-related threats made to the district's schools, which were apparently hoaxes.[151] Social media reports of potential clown-related activity in the Bay Area's Antioch and Oakland schools lead to investigations by city police investigations.[151] Schools in Pittsburg banned students from wearing any makeup for Halloween due to the clown scare.