At least 10 people have been killed in a shooting at a Texas high school, say police
.Harris County Sheriff Ed Gonzalez told reporters the majority of the dead at Santa Fe High School were students.
A student was held after the attack. Police said explosive devices were found at the school, 40 miles (65km) south of Houston, and off-campus.
The death toll makes this the deadliest school shooting since the one in February at Parkland, Florida.
Santa Fe Police Chief Jeff Powell said: “There have been explosive devices found inside the high school, and in the surrounding areas adjacent to the high school.”
He advised residents to be aware of any suspicious objects they find.
“Do not touch any items that look out of place,” he said, warning residents to immediately call the police.
He said a Santa Fe school police officer was among the injured.
