Some undocumented mothers in Los Angeles told CBS News they are unwilling to risk sending their children to school at all.

Los Angeles students and teachers return to class for the new academic year Thursday under a cloud of apprehension after a summer filled with immigration raids and amid worries schools could become a target in the Trump administration’s aggressive crackdown.

The district will distribute family preparedness packets that include know-your-rights information, emergency contact updates, and tips on designating a backup caregiver in case a parent is detained.