Kansas Governor Laura Kelly has ordered flags in the state to fly at half-staff through sundown Friday, in honor of the 19 children and two adults who were killed Tuesday in a shooting at an elementary school in Uvalde, Texas, west of San Antonio.

The governor issued a statement saying “Our thoughts are with the families who have lost their loved ones to this senseless act of violence. We must do more to protect our children and ensure that schools are safe places for learning.”