Five schools in Sarasota County are on lockdown Thursday morning due to a gun that was brought on one of the buses. Riverview and Suncoast Polytechnical High Schools, Suncoast Technical College and Phillippi and Wilkinson Elementary Schools were all affected. Word came out about a high school who had brought a gun on a bus, but did not remain on campus of the unspecified school. Students were back in class around 11am, but a modified lockdown remained in place. Nobody was allowed in or out for the morning hours.