At least 14 people were injured during a mass stabbing at a local community college in the northwest Houston area Tuesday morning, according to the Harris County Sheriff's Office.
Four people were transported by emergency officials to local hospitals after the incident at 11 a.m. at the CyFair campus of Lone Star College, the sheriff's office said in a statement.
One suspect was detained, the statement said.
"A long, extensive investigation on this sprawling campus is being conducted," the police statement said.
One suspect was still on the loose, according to an alert on the school website. Those on campus were urged to seek shelter in a secure location.
The campus was still under lockdown at about 12:30 p.m. as public safety officers searched two health science buildings room by room for additional victims, Cy-Fair fire department Public Information Officer Robert Rasa said.
Three people were shot at a separate campus of Lone Star College in January.