A six-year-old boy who battles leukemia, his nine year-old sister and mother have been arrested by immigration agents at their L.A. court hearing. The family was sent to a facility in Texas.

Now, in a desperate attempt to prevent her family’s deportation and continue her son’s medical care, his mother has filed a lawsuit challenging the legality of her family’s detention.

L.A. Times staff writer Andrew Campa joined Lisa McRee with more.