The Spring Independent School District issued a security statement overnight due to new clown threat hoaxes made online.

People posing as threatening clowns on social media are forcing schools nationwide to send letters to parents, and some have even locked down.

Schools and police departments are calling the threats a hoax, but it’s no laughing matter. In fact, some of the people who have made the threats have been arrested.

RELATED: Clown hoax reaches Houston

The latest “threats” were targeted at Spring schools over the weekend.

The district posted the following message on Facebook late Sunday:

Dear Spring ISD Parents and Guardians:

We have been made aware of a social media hoax made toward school districts and campuses across the state, including several Spring ISD campuses. Although this was determined to be a hoax and we will have school tomorrow, please know that we have taken precaution with extra security at our campuses.

We ask parents and students to confirm facts and be cautious of what they share via social media, although we do appreciate students and parents alerting our Spring ISD Police Department to potential threats.

As you know, the safety of our students and staff is our top priority. Be assured that the Spring ISD administration and Spring ISD Police will continue to monitor this matter.

Thank you for your continued support.

Early Monday, Klein ISD posted a similar message on Twitter.

And late last week, Houston ISD, Humble ISD and Bay City ISD received similar clown threats.

So far, no actual incidents have been reported at any schools in Texas related to the threats.