Superintendent Diana Greene says there has not been a reported threat against her campuses.

Manatee and Sarasota county schools announced Thursday that they would increase security on campus following the Broward County school shooting that left 17 people dead.

On Thursday morning, students in Manatee County arrived at school to an increased police and administrative presence, district spokesman Mike Barber said.

“In addition to having increased police presence, there were also administrators sent out specifically to our elementary schools,” Barber said.

Barber said there had never been a significant incident in Manatee after a school shooting, but the increased police presence would be maintained through today.

District Superintendent Diana Greene sent an email to the school community Wednesday night, letting parents know the district would be on alert in light of the shooting.

“There has not been any reported threat against any Manatee County school; however, because this incident took place so close to our home, I have reached out to local law enforcement officials and they have agreed to have an increased presence near and around our schools for the rest of this week,” Greene said.

Greene also said counselors would be available for students.

Students in Manatee do lockdown drills several times a year, Barber said, and each middle and high school has its own school resource officer. The elementary schools share a resource officer between schools.

Sarasota County School Superintendent Todd Bowden sent a message to parents Thursday morning announcing the district's intent to increase campus security.

"We are working with law enforcement and the district's Operations Communications Center to have an increased presence and visibility in and around our schools," Bowden said in the email. "In addition, our School Resource Officers will have a more visible and vigilant presence on campus."

He added that principals and assistant principals had been given a list of steps to ensure the safety of Sarasota County schools.

The district would post advice for parents on how to talk to their students about safety and security on their website and Facebook page, Bowden said in the email.

Sarasota City Commissioner Hagen Brody also wrote City Manager Tom Barwin, Bowden and School Board Chairwoman Bridget Ziegler asking the commission to look at securing the Sarasota High campus, particularly the School Avenue portion, which borders Bahia Vista Street near the Sailor Circus.

"We have been talking about securing the Sarasota High campus up to and including vacating the relevant portion of School Avenue for too long," Brody wrote Thursday. "This cannot wait any longer. ... Doing all that we can to protect the safety and welfare of our students is a priority of the highest order and open access to the campus is a glaring security compromise and we need to address immediately."

Brody asked that the item be discussed at the City Commission's March 5 meeting.

Security on school campuses has been a topic of national conversation elevated after the Columbine school shooting in 1999, which killed 13 people and injured more than 20 others. There have been at least 74 incidents of violence resulting in death at elementary, middle and high school campuses since 1927, according to a list compiled by CNN. The majority of these killings occurred with the use of a gun.