A Judson High School junior has been charged in connection with a lockdown at Madison High School on Tuesday.
Chelsea Marie Hill, 17, was charged Wednesday with making a terroristic threat.
Judson Independent School District spokesman Steve Linscomb said Tuesday that the girl admitted sending texts to a Madison student claiming there were weapons on the Madison campus.
Linscomb said authorities traced the texts back to the student's phone.
In addition to the charges, Hill will also be subject to administrative disciplinary action.
"The Judson ISD does not tolerate such behavior," Linscomb wrote in the statement. "Threats like this, however harmless a student may think they are, have no place in the classroom or anywhere else."
North East Independent police and a K-9 unit searched the Madison campus but did not find any weapons. The soft lockdown was lifted about two hours later.
The lockdown came one day after Madison sophomore Brendan Tarwater was caught with three loaded weapons on the campus. Two handguns and some knives were found in Tarwater's backpack and district police found an AK-47 in a bathroom, district officials said. Tarwater told district police he planned on using them if certain demands were not met.