Up to eight people have been reported dead in a shooting at a Texas high school, which is on lockdown.
One person is in custody after the attack at Santa Fe High School, which is about 40 miles (65km) south of Houston, according to school officials.
The school district has confirmed people were injured in an "active shooter" incident as classes began.
It is unclear if the attacker was a student. Police have not yet confirmed any fatalities.
The sheriff of Harris County, the largest county in Texas, tweeted that his officers were responding to a "multiple-casualty incident".
Please subscribe HERE http://bit.ly/1rbfUog