At least 10 people were killed Friday morning after a shooter opened fire in a Santa Fe high school.
The situation is now contained, according to the Harris County Sheriff's Office.
"One is in custody, a second one detained. An injured police officer is being treated, the extent of his injuries are unknown," the Harris County Sheriff, Ed Gonzalez, tweeted.
At a White House event on prison reform, President Trump gave condolences to the families of the victims and said he'd work to "keep weapons out of the hands of those who pose a threat to themselves and to others."
Student activists from Marjory Stoneman Douglas High School — just days after the three month anniversary of the shooting at their school — offered their support to the Santa Fe victims and expressed anger that so little has changed.
"Santa Fe High, you didn’t deserve this," said Emma González.
"You deserve more than Thoughts and Prayers, and after supporting us by walking out we will be there to support you by raising up your voices," she said.