Eight killed in Texas shooting

​Santa Fe: Multiple people died as a result of a shooting on Friday morning at a high school in the southeastern Texas city of Santa Fe, two law enforcement sources said. This is the third school shooting in the past seven days, and the 22nd since the beginning of the year in the United States.

A suspect in the shooting at Santa Fe High School has been arrested, assistant principal Cris Richardson told reporters near the school. A second person has been detained as well, Harris County Sheriff Ed Gonzalez said on Twitter. 

Witnesses described students running from the school as they heard gunshots; they also described hearing an alarm at the school, though the sequence of events wasn't immediately clear.

An armed person walked into an art class at the school and began firing what looked like a shotgun, a witness said. The witness said she saw a girl shot in the leg.    

Patients from the school are being taken to a hospital in the nearby city of Galveston, hospital spokesman Raul Reyes said. He did not say how many or give details about the injuries. At least one police officer was injured, Sheriff Gonzalez said.

Aerial video from the scene showed several police officers outside the school. Some were searching students and their backpacks.

Angelica Martinez, a 14-year-old student, told CNN she and her schoolmates were being evacuated at one point "like it's a fire drill." "We were all standing (outside), but not even five minutes later, we started hearing gunshots," she said. "And then everybody starts running, but like the teachers are telling us to stay put, but we're all just running away."

"I didn't see anybody shooting, but like (the gunshots) were kind of spaced," Angelica said, adding she heard about four shots.