MIAMI (CBSMiami) – Thursday’s California school shooting is a painful reminder for South Florida, which is still dealing with the trauma of the Marjory Stoneman Douglas High School massacre, 21 months ago.

Miami-Dade Schools Superintendent Alberto Carvalho tweeted, ‘As we continue to closely monitor this latest #schoolshooting,
Miami-Dade County Public Schools will remain vigilant and on heightened alert. We urge the community to report suspicious activity via See Something Say Something or FortifyFL.’

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“Saddened for the lives that are being impacted by this latest school shooting. Hoping that this senseless act of violence does not result in loss of life,” Carvalho he said in a tweet.

Broward School Board Member Lori Alhadeff, whose daughter Alyssa was killed during the Parkland shooting, says there has to be more emphasis on mental health.

“Our hearts go out to anyone who lost someone,” said Alhadeff.

“We need to start at a younger age and work with students, so by the time they are in high school they are used to it,” Alhadeff added.

Alhadeff is also working to pass Alyssa’s Law in Florida, which will put a panic button in every school.

The school district continues to work on school safety and has taken four major steps.

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There is a single-point entry at all schools and all schools have a secure perimeter.

The exterior gates are locked and there’s an increased number of security staff.

The Secret Service report on school violence which examined dozens of school shootings nationwide found that there are always warning signs.

“This unfortunately, forces us to redouble our efforts,” said a Ryan Petty, who also lost a daughter in Parkland.

Petty is traveling the country, rolling out the findings of the Secret Service report.

“We have to make sure schools implement threat assessment teams,” he said.

The student-led ‘March for our Lives’ movement formed after the MSD massacre tweeted a message to California:

“All the students who have lived through this and re-experience this trauma we send our love and support.”

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Thursday morning, a student pulled a gun from his backpack and opened fire at Saugus High School in Southern California. Two students were killed and three others were wounded.