The mother of sisters Erin and Shannon Gallagher, who both died by suicide, is to sue school authorities for damages.

A range of psychologists and other mental health experts were on hand to support Shannon Gallagher’s schoolmates and teachers after the tragedy.

The school attended by Erin and Shannon Gallagher has appealed for time and space after Shannon's death less than two months after the suicide of her younger sister.

The teenage sister of schoolgirl Erin Gallagher, who died by suicide less than two months ago, has also died.