CHICAGO – At least eight people were killed when a student opened fire onhis classmates at a Texas high school on Friday, authorities said.

“There are multiple fatalities,” the sheriff of Harris County, Ed Gonzalez,told a news briefing. “There could be anywhere between eight to 10, themajority being students.”

Harris said the gunman was a student at Santa Fe High School in the city ofthe same name, located about 30 miles (50 kilometers) southeast of Houston.

*´Absolutely horrific´*

US President Donald Trump expressed “sadness and heartbreak” over shootingat a Texas high school.

Describing the incident as “absolutely horrific,” Trump said: “This hasbeen going on too long in our country.”

“My administration is determined to do everything in our power to protectour students, secure our schools, and to keep weapons out of the hands ofthose who pose a threat to themselves, and to others,” he added.

Trump has previously shied away from gun control measures in favor ofarming teachers.