At least three people, including a suspect, have been shot at Lone Star Community in North Harris County, according to Precinct 4 deputy constables.
Dozens of law enforcement officers are searching for a second suspect on the loose.
KHOU 11 News stringer Lloyd Overcash saw one male being brought out of the library on a stretcher.
At least one other person was being treated by EMS crews outside the library when Air 11 flew over.
Other crews were entering the library with stretchers, as students filed out.
The only thing campus officials could confirm is that the school is on lockdown.
KHOU has more click here.