TORONTO - Ontario's Court of Appeal has told a group of parents of autistic children they will have to rework their claim if they hope to succeed in a lawsuit against the province and seven school boards.

The court said the claims as they stand could not succeed.

Five families are hoping to sue the Ontario government and the school boards for negligence and damages.

They argue the province and boards failed to provide their autistic children with expensive therapies in schools.

The therapies can cost between $30,000 to $80,000 a year for each child.

A lawyer for the families says it's still too early to decide whether to go ahead with the lawsuit.