Clear Creek ISD says a student was arrested after bringing an unloaded gun to school Monday morning. Also, a student at Hargrave High School in Huffman was arrested with a firearm.
No one was injured.
The unrelated incidents come as nearly all area school districts have increased their security efforts.
At a third incident at LaMarque High School, a student was arrested after the threat of a gun -- but school officials quickly pointed out that there was no actual gun on campus.
"A student texted someone to bring him one. We have arrested that student," the Texas City ISD said in a statement.
Also, officials in Santa Fe this afternoon will discuss the latest on the investigation of the fatal school shooting last Friday that killed 10 and injured 13.
That news conference will be at 4 p.m. The topics are expected to include the reopening of local schools later this week.
If there's a disagreement about gun rights, there's common ground on all sides about the need for schools to be safe. That was illustrated on Sunday, usually a day of worship, with:
--Houston Mayor Sylvester Turner, a Democrat, speaking at the first funeral from the massacre -- and calling for metal detectors at all Houston ISD campuses, saying that schools should be as safe as airports and federal buildings.
--Lt. Gov. Dan Patrick, a Republican, calling for fewer entrances at school buildings and the arming of teachers.