School districts in Houston and Miami have received threats of violence similar to those received by Los Angeles and New York earlier this week.

The Houston Independent School District, the largest school district in Texas and seventh largest in the nation, told students and parents that though it received a threat of violence similar to those received by the other school districts, it was not believed to be credible.

HISD said law enforcement officers "are in the process of conducting random sweeps of school district buildings" as a precaution, and that additional officers will be on patrol Thursday morning. According to a statement, schools will be open Thursday.

Miami-Dade County Public Schools reported receiving a threat late Wednesday night, described by officials as "similar to those received by other school districts including Los Angeles and New York earlier this week," in a statement, adding that, "similar threats have been received by Broward County Public Schools and Houston Independent School District."

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