More than a dozen people were wounded when a suspect went building-to-building in a stabbing attack at a Texas college campus today, authorities said.
The attack on the Lone Star Community College System campus sent at least 12 people to area hospitals, including four people taken by helicopter, according to volunteer fire department spokesman Robert Rasa.
He said several people refused treatment at the scene and all the wounds were consistent with stabbing.
Sheriff Adrian Garcia said the suspect is in custody and is a man believed to be about 21 years old and is enrolled at the school.
Sheriffs said at least 14 people in all were wounded.
School officials initially urged people on campus, about 25 miles north west of downtown Houston, to take shelter and be on alert for a second suspect although it later appeared just one person was responsible.
The four people taken by helicopter and two others with moderate injuries were taken to Memorial Hermann Hospital. Of those six, two were in critical condition and four were in fair condition, hospital spokeswoman Alex Rodriguez said.
One student said she learned one of her classmates was stabbed after leaving the school's Health Science Centre building.
"I called to check on another classmate who was still inside the building and she said the classroom was on lockdown and she said one of the classmates had been stabbed," said Margo Shimfarr-Evans to KHOU-TV. "It happened in the hallway."
Courtland Sedlachek, 18, was in class when his phone started buzzing along with the phones of everyone else in class. The room was temporarily locked down, but students were let out and off campus a short time later, in what Mr Sedlachek described as an orderly evacuation.
He described his reaction as a "little bit of nervousness."