The Minnesota parents who refused chemotherapy for their 13-year-old son because of religious beliefs have now agreed to allow the treatment.

Colleen and Anthony Hauser said Tuesday that they understand their son, Daniel, needs chemotherapy.  A judge has also given permission for the boy to remain in his parents' custody.

The decision came one day after Colleen Hauser voluntarily returned home with her son, after almost a week on the run to avoid his court-ordered chemotherapy.

Police now believe it may have been Daniel, and not his mother, who wanted to flee.

His mother said he was so sick after his first chemo treatment that he planned to run away, and that they left the state to get alternative medical treatment for Hodgkin's lymphoma.

The local sheriff said warrants for the mother's arrest have been dropped.

"We're doing that to give them a sense of safety and just to, you know, be by themselves, reunite themselves," Brown County Sheriff Rich Hoffman said.

Hodgkin's lymphoma has a 95 percent cure rate in children, if treated with chemotherapy.