AUSTIN, Texas -- Texas Attorney General Ken Paxton says university professors could face disciplinary action if they don't allow handguns to be brought into their classrooms.

Paxton's court filing this week was part of a motion to dismiss a federal lawsuit brought last month by three professors at the University of Texas at Austin seeking to block the so-called campus carry law, which took effect Aug. 1.

Texas has allowed licensed concealed handguns in public since 1995 but had previously made college buildings off limits.

The Dallas Morning News reports that the three professors are asking a judge to put the law on hold.

They argue the law is too vague for them to know if and how they might be punished if armed students are kept out of their classrooms.