CYPRESS, Tex. -- At least 14 people were injured in a stabbing incident Tuesday morning at Lone Star College's CyFair campus in the Houston area, officials said.
Authorities have detained one suspect at the campus in Cypress, Texas so far the only suspect at this point, a sheriff's spokesman told reporters Tuesday afternoon.
The suspect is enrolled at Lone Star College, where the incident occurred, Harris County Sheriff Adrian Garcia said.
Student Maya Khalil, 19, was in class in the campus' health sciences building when the incident happened, she said. She managed to take photos of the chaotic scene as it unfolded.
"It was really scary," Khalil said.
Authorities released different accounts of how many people were wounded.
Robert Rasa, a spokesman for the CyFair Volunteer Fire Department, said 15 people were hurt. Sheriff's officials said 14 people were wounded.
The school was on lockdown Tuesday afternoon while authorities combed the campus to ensure no other injured people or attackers were there, Harris County sheriff's spokesman Alan Bernstein said.
Marianna Sviland, a teacher at the college, told CNN at 2 p.m. (3 p.m. ET) that students and staff were being allowed to leave campus.
Bernstein said it wasn't clear whether all of the injured people were stabbed.
"It's possible other people were running away" and became injured that way, he said.
Four people were taken to a hospital by helicopter, authorities said. The conditions of the victims weren't immediately available.
The four flown to a hospital "were in a dire enough situation that they were taken out on helicopters," Bernstein said.
Bernstein said it will take time for authorities to go through the campus and "make sure there (is) not another suspect or suspects."
"I do believe the confrontation was limited to a few (classrooms) or just one classroom not anybody roaming around and getting into a large number of areas," Bernstein said.
Details about what led to the incident weren't immediately released.
"Stay away from the area. Seek shelter in a secure location until the incident is resolved," the school
Tuesday's incident comes more than two months after three people were wounded in a shooting at a different Lone Star College campus the North Harris campus in Houston.
CNN's Paul Caron, Chuck Johnston and Jason Hanna contributed to this report.
Chandler Friedman | CNN