Updated 12:48 p.m. Sept. 30

An all-clear has been announced, and all lockdowns have been lifted, according to the Tomball Police Department.



Updated 11:43 a.m. Sept. 30

Tomball High School and Tomball Junior High School are still in secure mode, according to a Facebook post from the city of Tomball. A device has not been found, the city said.


Posted 10:36 a.m. Sept. 30

The Tomball Police Department is investigating an anonymous bomb threat at Tomball High School, according to a Facebook post from the city. Harris County Precinct 4 is also assisting with the investigation, the office said on a Twitter post.

Tomball High School is currently in "secure" mode, with all doors locked and students and staff inside the building, the city said. All local schools in the Creekside area are on lockdown, and constable deputies are monitoring them, the constable's office said.