Katy ISD says the Taylor High School student did not make any specific threats, but Katy police gathered enough journal writings and social media postings to cause concern.
"We are working in conjunction with local and federal law enforcement agencies and the student's parents, and at this time we believe that the risk has been abated, but the investigation will continue. Should developments warrant further communication, we will keep you apprised of the situation," Superintendent Alton Frailey wrote in a letter to parents.
The district says there will be an increased security presence through this week and into next week.
Meanwhile, the district says anyone can report suspicious activity to the Katy ISD Police at 281-237-4000. Information may also be reported anonymously to Crime Stoppers at 713-222-TIPS (8477).
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